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Express Water Reverse Osmosis Alkaline Water Filtration System – 10 Stage RO Water Filter with Faucet and Tank – Under Sink Water Filter with Alkaline Filter for Added Essential Minerals – 50 GPD

4.6 4.6 out of 5 stars 7,842 ratings
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50 GPD pH+ RO
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Purchase options and add-ons

Brand EXPRESS WATER
Special Feature NSF certified
Product Dimensions 15"L x 5"W x 17"H
Package Information Tank
Installation Type Under Sink
Item Weight 29.5 Pounds
Model Name ROALK5D
UPC 705332529525
Global Trade Identification Number 00705332529525
Manufacturer Express Water
Material
Alloy Steel, Brass, Plastic
Capacity
4 Gallons
Included Components
Alkaline Reverse Osmosis System
Purification Method
Reverse Osmosis, Alkaline

About this item

  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system filtering up to 99. 99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more
  • Alkaline Water Filter: Express Water’s Alkaline Water Filter with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your water
  • Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system
  • Quality : Rest easy with our 1-year on all Express Water Reverse Osmosis Water Systems. System dimensions: 17x15x5 inches, Tank dimensions: 15x12x12 inches
  • Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
  • Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture
  • Customizable RO Water Filter System: Express Water home water filtration systems are fully upgradable and customizable with quick connecting fittings. Try additional filtration attachments including UV Water Filter, Deionization Water Filter, and more
  • On Demand Support: Support from experts who can answer any of your questions about your new water filter

Additional Details

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This item: Express Water Reverse Osmosis Alkaline Water Filtration System – 10 Stage RO Water Filter with Faucet and Tank – Under Sink Water Filter with Alkaline Filter for Added Essential Minerals – 50 GPD
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 15 x 5 x 17 inches; 29.5 Pounds
  • Item model number ‏ : ‎ ROALK**
  • Date First Available ‏ : ‎ August 18, 2014
  • Manufacturer ‏ : ‎ Express Water
  • ASIN ‏ : ‎ B00MU20LN2
  • Country of Origin ‏ : ‎ Taiwan
  • Customer Reviews:
    4.6 4.6 out of 5 stars 7,842 ratings

Product Description

Make the purest alkaline mineral water with your own home alkaline water system. Great in the kitchen: Improve the taste of your cooking, coffee, ice, and drinks. Experience true Reverse Osmosis purification. Safe filtered fresh tasting H2O: Removes up to 99.99% of contaminants including Lead, Chlorine, Fluoride, Cyanide, Giardia, Radium, Asbestos, Calcite, Heavy Metal, Bacteria, Viruses, Pharmaceuticals, and over 100 other contaminants. Get setup fast with our Quick Connect tubing system. Long lasting filters of the highest capacity standards mean you only need to change your filters every six months. Includes fast flow faucet with 0.8 GPM delivery. A compact system made to fit under a sink in a cabinet. Best for house, apartment, residential, well water, industrial, rv, machine, and office uses. Certified by an independent laboratory to NSF standard 58.Comes with 4 gallon (3.2 gallon water capacity) storage tank and tank stand. Your tank can sit upright or on it’s side to make sure it fits under most kitchen cabinets. Includes all filters needed for setup and first 6 months of use. Can be wall / cabinet mounted or freestanding, made for indoor use. Can be installed undersink, in a basement, or other remote locations, you may need additional tubing or a delivery pump depending on how far away you plan to install or if you plan to link to a refrigerator as well. For every one gallon of water produced the system discharges between one and three gallons (depending on the pressure and quality of your incoming water). The system is compatible with 3/8" and 1/2" under sink connections. Includes filter housing wrench. Operates on 40-80 PSI water pressure, you may need a Booster Pump or Pressure Regulator depending on your water pressure. The water is cleaner and more convenient than any pitcher, faucet filter, or counter top systems. Express Water’s 10 Stage Reverse Osmosis Water Alkaline Filtration System ROALK5D is the complete solution for your drinking water.


From the brand


From the manufacturer

White housing alkaline

Mineral Water In Your Home

Start drinking clean healthy water with the minerals you need like Calcium, Magnesium and Potassium. Keep your energy up with antioxidants and increased oxygen levels in your water. RO Alkaline water features higher pH than an ionizer can produce to balance your water. Choose the only alkaline filtration with 5 stages of mineralization. Start drinking healthy today!

White housing alkaline

5 Stages of mineralization combine with 5 stages of RO filtration to make the only 10-stage system offering the most complete water!

  • Express Water’s 1st stage is a Sediment filter that targets dirt, dust, sand, and rust.
  • The 2nd and 3rd stages are Granular Activated Carbon and Activated Carbon Block Filters which focus on pollutants like chlorine, volatile organic chemicals, and odor causing compounds.
  • These early stages help extend the life of the 4th stage, the Reverse Osmosis Membrane. The membrane focuses on the most difficult impurities like lead, arsenic, chromium, fluoride, TDS, radium and others.
  • The Alkaline Filter then adds 5 stages of mineralization, antioxidants, and oxygen to your water. One for each Active Mineral stage your water flows through. Our minerals are ionically activated so your water picks up more mineral content as it passes through five stages of mineral rocks. The same way the healthiest natural springs on Earth add minerals.
  • The 10th stage is a Post Activated Carbon Filter which does a final pass on your water, right before it comes through the faucet, removing any possible taste or odor.

It’s the combination of these stages that has given countless customers water purer than bottled water straight from their faucet.

NSF certified tested performance

Independently Tested

Express Water RO Systems have been independently tested by a third-party ANAB accredited testing laboratory that use established NSF / ANSI drinking water standards, including NSF/ANSI Standards 42, 58, 401 and EPA 524.2, for the reduction of TDS (total dissolved solids), chlorine taste & odors, emerging compound and incidental impurities, and more.

  • Heavy Metals: >99.96% (Including Mercury, Lead, Uranium, Chromium VI and more)
  • Chemical Disinfectants: 99.68% (Chlorine and Chloramine)
  • Fluoride: 99.83%
  • Pharmaceuticals: >99.99% (Including Ibuprofen, Caffeine and more)
  • Nitrates / Nitrites: 99.26%
  • Volatile Organic Compounds (VOCs): >99.99% (Sources include paint, varnishes, gasoline, smoke and more)
  • Semi-Volatiles: >99.29% (Including hydrocarbons, ethers, PCBs and more)

Further information can be found in our Specification Sheet (PDF) link below.

Proven Quality

  • Air Jet: Every system is checked for leaks by an air injection pressure test. Water Pressure: Each component undergoes intense high water pressure tests to ensure durability. Cycle Resistance: Systems undergo simulated heavy use to make sure they can handle anything.
  • NSF Certified: The foundation of our systems, the RO5DX and RO10DX meet or exceed NSF standard 58 for system construction. Certified for lead free construction, reduction of dissolved solids, and cycle test reliance. License#C0393496-01 Issue Date: October 22nd 2018.

Deluxe Chrome

Water When You Need It

With efficient filtration and quick delivery, get your water fast.

Deluxe Chrome faucet with brass water way for pure water delivery.

Fast Flow Rate: Get your water fast. Water through your faucet at 0.8 GPM!

An adult should drink 0.5-1.55 gallons of water a day. Makes more than enough water for the whole family!

Always Ready: This system can produce up to 50 gallons of pure water a day.

White housing alkaline

Save Your Time

Express Water offers several features unique to this system.

Our Quick Connect system is fast, easy, and helps prevent leaks.

Our Leak Stop Valve shuts off water flow if excess water is detected. A fabric disk stays on the floor beside your system. If for any reason water is absorbed the flow to your system is stopped.

Included Brass Feed Adapter and Quick Connect Adapter means no going to the hardware store to buy parts. The feed adapter fits the two most common sizes of under sink pipes 1/2” and 3/8”.

White housing

Easy Swap

Filter changes are quick and easy with simple design and clear labels.

A labeled color matched system so you know what goes where at a glance.

Your pre & post filters are swapped out only twice a year: Sediment, Granular Activated Carbon, Activated Carbon Block, Post Activated Carbon and Alkaline.

The Reverse Osmosis Membrane is replaced only once a year.

Double Sealed Filters to preserve your filters and your kitchen. Each filter is double sealed to provide the best filtration efficiency and value.

White housing alkaline

Here To Help

Our water technicians are here to answer any questions you may have about your system or your home’s water in general.

If you run into a question or problem, we want to help you through it. We’re not happy unless you are.

Have any questions about your system or your home’s water answered by experts

Questions before buying? Just give us a call!

RO5DX ROALK5D ROUV10DCG ROALKUV10M RODI10D ROELITE9
RO System ALK System UV System ALK + UV System ION System Elite RO
Customer Reviews
4.6 out of 5 stars
7,842
4.6 out of 5 stars
7,842
4.5 out of 5 stars
1,966
4.5 out of 5 stars
390
4.3 out of 5 stars
30
Price $152.99 $174.37 $199.99 $189.99 $234.40
System Name RO5DX ROALK5D ROUV10DCG ROALKUV10M RODI10D ROELITE9
Filtration SED, GAC, ACB, ROM, PAC SED, GAC, ACB, ROM, ALK, PAC SED, GAC, ACB, ROM, UV, PAC SED, GAC, ACB, ROM, ALK + UV, PAC SED, GAC, ACB, ROM, ION, PAC SED, GAC, ROM, ALK, PAC
Gallons Per Day 50 GPD 50 GPD 100 GPD 100 GPD 100 GPD 100 GPD
Reverse Osmosis Filtration
Sediment (Dirt, Rust, Sand) Reduction
Chlorine and VOC Reduction
Alkaline Mineralization
Ultraviolet Filtration
Deionization Filtration
Pressure Gauge

What's in the box

  • Alkaline Reverse Osmosis System
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    7,842 global ratings

    Review this product

    Share your thoughts with other customers

    Customers say

    Customers find the water purification unit easy to install and providing good quality water. They appreciate its simple plumbing setup that allows for almost any plumbing setup. The water tastes great and is clean enough for drinking. The system works well and starts working immediately. Many customers consider it a good value for the price, with low maintenance costs and a good filter set. However, some customers have mixed opinions on leakage.

    AI-generated from the text of customer reviews

    1,055 customers mention "Ease of installation"916 positive139 negative

    Customers find the water purification unit easy to install. The instructions are clear, and the system works as advertised. They were able to plug it in and replace a different system that leaked.

    "...whatsoever and it looks nice and clean and was so cheep and simple to install......" Read more

    "...The plumbing was very easy and straight forward. I did add a permeate pump, which I also purchased from Amazon...." Read more

    "...are standard sizes (i.e. I don't have to buy from them), the plumbing was all provided, even Teflon tape (and lots of it) and nice clear instructions..." Read more

    "Easy to install. Water is great tasting and no bad smell. This system really works." Read more

    618 customers mention "Taste"555 positive63 negative

    Customers like the taste of the water from the purifier. They say it tastes great and works well for refilling 5 gallon water jugs.

    "...Water tastes similar to distilled water as compared to our regular water... We could not be more..." Read more

    "We actually have pretty decent tasting, clean water already...." Read more

    "...The water from this unit tastes great, with absolutely no odor, and is of very high quality...." Read more

    "Easy to install. Water is great tasting and no bad smell. This system really works." Read more

    612 customers mention "Water quality"508 positive104 negative

    Customers appreciate the water quality. They say it provides clean, well-tasting water, reduces wastewater, and is water-well friendly. The 5-stage filtration removes contaminants and improves the taste. They find it secure to have pure water and appreciate the extra security it offers.

    "...very inexpensive and quality system in our home and the extra security of having pure water is awesome!!! LOVE IT" Read more

    "We actually have pretty decent tasting, clean water already...." Read more

    "...this one out after a couple of years, but for right now, it supplies all the clean water I need...." Read more

    "...It makes water a bit faster than their estimates. My input water is fairly low in TDS (about 80) and yields final water after flushing of about 8-..." Read more

    588 customers mention "Functionality"526 positive62 negative

    Customers appreciate the water purifier's functionality. They say it works well, the filtration system is designed to work together, and it starts working immediately. The water tastes great and works well for refilling 5 gallon water jugs. Overall, customers are satisfied with the performance and value for money.

    "...it is no problem whatsoever and it looks nice and clean and was so cheep and simple to install......" Read more

    "...The plastic-olive alternative works fine though. A small, cheap angled wrench for tightening up the nut(s) would be a welcome addition to the kit...." Read more

    "...and started working immediately. It makes water a bit faster than their estimates...." Read more

    "Easy to install. Water is great tasting and no bad smell. This system really works." Read more

    449 customers mention "Value for money"424 positive25 negative

    Customers appreciate the value for money of the water purifier. They say it makes great water cost-effectively, and maintenance will be lower than most. The RO system basically paid for itself on install and will be saving them time.

    "...to our regular water... We could not be more happy to have this very inexpensive and quality system in our home and the extra security of having..." Read more

    "...may be doing are enough to raise some concerns and this is decently priced so we decided to give it a go...." Read more

    "...The low cost HM Digital read identical to the high end unit we had at work...." Read more

    "...new home purchase, I came across this Express Water RO unit at an amazing price (which included a year of filter changes)...." Read more

    396 customers mention "Quality"362 positive34 negative

    Customers appreciate the water purification unit's quality. They say it produces high-quality drinking water and is reliable. The installation process is described as easy and not overly complicated.

    "...We could not be more happy to have this very inexpensive and quality system in our home and the extra security of having pure water is awesome!!!..." Read more

    "...I was pleasantly surprised when I opened the box. The unit is a quality built unit, with a manifold that houses the 3 standard filters on the..." Read more

    "...Overall, a reliable and cost-effective system for anyone looking for clean drinking water." Read more

    "...connect to 2 fridges plus heavy everyday use and so far it is holding up really well...." Read more

    174 customers mention "Filter set"153 positive21 negative

    Customers like the filter set. They say it comes with extra filters, an additional set of replacement filters, and a year's supply of filters. The unit has a manifold that houses the 3 standard filters on the bottom, with the RO filter and final. The kit comes with a higher efficiency and less filters. It tastes good and really filters good. Customers can easily add additional filtration attachments like a UV Water Filter or Alkaline Water Filter.

    "...The product came fast it came with an extra set of filters for the three main stages of filtration...." Read more

    "...unit is a quality built unit, with a manifold that houses the 3 standard filters on the bottom, with the RO filter and final charcoal filter on the..." Read more

    "...capacity is perfect for my household, and the fact that it comes with 4 extra filters is a nice touch for easy maintenance...." Read more

    "It's a nice system with all the filters hoses and reservoir tank included. I'm very happy with it and I paid $130 on sale at Amazon...." Read more

    234 customers mention "Leakage"93 positive141 negative

    Customers have different experiences with leaks. Some report no leaks after a week of use, and the system comes with a leak sensor that automatically shuts down if a leak occurs. Others mention drips from the filter housing or water spraying out of every hose.

    "...installation wasn't that easy crawling around under the sink and leaks were common the first couple days The large filters require a lot of..." Read more

    "The system as bought works quite well. It was easy to assemble, it didn't leak (well, after I tightened the top of the tank a bit more), and started..." Read more

    "...I wish that this was included or at least documented. - Leak stop valve LEAKS: The leak stop valve that was included with mine had one upwards..." Read more

    "...I've seem some reviews.....I do not have any leaks, or poor fittings with my experience...." Read more

    Impressed thus far!!!!
    5 out of 5 stars
    Impressed thus far!!!!
    I purchased this unit due to the free space I have under my sink.I am not a fix it person by trade, not a plumber, electrician. Etc. From start to finish it took 1 hr to install. That's the time to open the box and package, gather the tools, read instructions and install parts.The instructions were easy enough to follow and understand for me. I took my time to install so I'm sure the time can be cut down to a much lesser time.After following the 1st time use instructions the unit seemed ready to go.I've seem some reviews.....I do not have any leaks, or poor fittings with my experience.I also do not have a chemistry set to test the water but according to the indicators on the system and my families opinion there is a difference in quality. My assumption is it will continue to improve with further use.All in all I'm extremely pleased at the moment and I would very much purchase this again at this time.If you're considering purchasing it, get it for sure. I can only attest to the single unit with 2 cartridges. Like I stated if I had the space I'd chosen the other. But I'm pleased with no complaints with this unit.
    Thank you for your feedback
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    Top reviews from the United States

    • Reviewed in the United States on April 18, 2015
      Style: 50 GPD ROVerified Purchase
      The best health purchase we have made in a while!!! The product came fast it came with an extra set of filters for the three main stages of filtration. It came with fittings to install completely with a simple set up. I laid out the set up to decide if I needed anything extra to install under my sink. I have both a ice maker and a small hot water heater for instant hot water for herbal tea under the sink and I wanted both of them to get the filtered water as well... So I needed an extra 1/4 inch tee and a few feet of 1/4 poly which I went to the hardware store to buy... You can design it how you want and I also got a 1/4 inch shut off to put on my line that feeds my hot water heater, so I can turn it off and work on it if I ever need to and not have to turn off my filter water... Make your own plans and go to the hard ware store and get the advice from the workers there and just go for it and you will not be sorry, because this is a great purchase. I contacted the seller and got semi clear covers and they were awesome to work with, but clear is not recommended because it could introduce light into where the filters are and theoretically introduce light grown organisms... So it needs to be where NO light will get to the filters, if you choose this option and the cans are off clear and if I had to recommend one or the other, I would stick with the white as they are the best; but I wanted to mention it as this company is so good and responds to your needs so well and I felt obligated to let others know that they will take care of you if you need something... I was curious how the ice would be after we installed this system and as others had said ... the ice was almost clear, which was cool :)... I will add this as it might be something you do it your-selfers might want to think of doing... While I had everything removed from under the sink, I also got a small piece of lanolin and put it under the sink and brought it up on the sides a couple inches and calked in so that when any water does spill, when changing filters, or simple wear on valves / faucets (as it is inevitable over the years) it is no problem whatsoever and it looks nice and clean and was so cheep and simple to install... (note: I made it so if ever there is a leak on any of my many fittings, water will come out the front and onto my sink rug and I will notice it and not have any problems going under cabinet/down stairs... looks good too)
      Water quality when measured at the same time from the regular faucet and unfiltered using a TDS unit (total dissolved solids) purchased here on Amazon is at 254 ppm (parts per million) and after it has been filtered through this unit, it was at 17 ppm and a week later it dropped to 14 as it cleaned out I guess (if I just barely touch the water with the tip or reader it is below 10 and if I Put entire end into water it is at 14 (It might get a bit lower as it gets more water through it, and water; and obviously, minerals will differ from one location to the next... ).. Water tastes similar to distilled water as compared to our regular water... We could not be more happy to have this very inexpensive and quality system in our home and the extra security of having pure water is awesome!!! LOVE IT
      Customer image
      5.0 out of 5 stars The best health purchase we have made in a while
      Reviewed in the United States on April 18, 2015
      The best health purchase we have made in a while!!! The product came fast it came with an extra set of filters for the three main stages of filtration. It came with fittings to install completely with a simple set up. I laid out the set up to decide if I needed anything extra to install under my sink. I have both a ice maker and a small hot water heater for instant hot water for herbal tea under the sink and I wanted both of them to get the filtered water as well... So I needed an extra 1/4 inch tee and a few feet of 1/4 poly which I went to the hardware store to buy... You can design it how you want and I also got a 1/4 inch shut off to put on my line that feeds my hot water heater, so I can turn it off and work on it if I ever need to and not have to turn off my filter water... Make your own plans and go to the hard ware store and get the advice from the workers there and just go for it and you will not be sorry, because this is a great purchase. I contacted the seller and got semi clear covers and they were awesome to work with, but clear is not recommended because it could introduce light into where the filters are and theoretically introduce light grown organisms... So it needs to be where NO light will get to the filters, if you choose this option and the cans are off clear and if I had to recommend one or the other, I would stick with the white as they are the best; but I wanted to mention it as this company is so good and responds to your needs so well and I felt obligated to let others know that they will take care of you if you need something... I was curious how the ice would be after we installed this system and as others had said ... the ice was almost clear, which was cool :)... I will add this as it might be something you do it your-selfers might want to think of doing... While I had everything removed from under the sink, I also got a small piece of lanolin and put it under the sink and brought it up on the sides a couple inches and calked in so that when any water does spill, when changing filters, or simple wear on valves / faucets (as it is inevitable over the years) it is no problem whatsoever and it looks nice and clean and was so cheep and simple to install... (note: I made it so if ever there is a leak on any of my many fittings, water will come out the front and onto my sink rug and I will notice it and not have any problems going under cabinet/down stairs... looks good too)
      Water quality when measured at the same time from the regular faucet and unfiltered using a TDS unit (total dissolved solids) purchased here on Amazon is at 254 ppm (parts per million) and after it has been filtered through this unit, it was at 17 ppm and a week later it dropped to 14 as it cleaned out I guess (if I just barely touch the water with the tip or reader it is below 10 and if I Put entire end into water it is at 14 (It might get a bit lower as it gets more water through it, and water; and obviously, minerals will differ from one location to the next... ).. Water tastes similar to distilled water as compared to our regular water... We could not be more happy to have this very inexpensive and quality system in our home and the extra security of having pure water is awesome!!! LOVE IT
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      25 people found this helpful
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    • Reviewed in the United States on March 17, 2023
      Style: 50 GPD ROVerified Purchase
      We actually have pretty decent tasting, clean water already. Absolutely no complaints on that one but some of the reports of what even very low-levels of some chemicals may be doing are enough to raise some concerns and this is decently priced so we decided to give it a go.

      Although installation was not too difficult, there were a few, fairly small issues that could have been smoother. Firstly, the instructions include no clearances or dimensions so the installer is left to measure and um-and-ah for themselves. We have a slightly awkward install as I decided to place it in the corner where there is some otherwise infrequently used space. There is a permanently installed shelf there. After a bit of backward-and-forwarding, I was able to ascertain that there was clearance for the tank and for changing the filters (with about 1/4" to spare). A mounting template would have been a very useful addition. Due to the confined space, I mounted one of the screws very slightly from where it needed to be and had to move it.
      The instructions are laid out like a brochure. Not terrible to work from but it means you have to hunt for the specifics sometimes. Other than the aforementioned dimensions and template, they're pretty complete though although it claimed a washer for the faucet that I didn't appear to have. It didn't seem to affect anything.
      You'll want to attach a fair amount of the pipes before you're crawling under your sink, especially if you have reduced access as I did. The top two filters are also probably best removed for the first part of the operation. They pop back in pretty easily.
      The faucet is a bit of a pain to install, especially with the small nut and that you can't attach the pipe before the faucet is installed (having a way to do that before was a godsend). I tried using the push-fit attachment first but that somehow seated wrong and was leaking. The plastic-olive alternative works fine though. A small, cheap angled wrench for tightening up the nut(s) would be a welcome addition to the kit. I did have a regular wrench but it wasn't ideal for the space.
      The short pipe to the leak-stop mechanism is just a bit too short. I had to mount the filters high because of the shelf and that means it doesn't quite reach the bottom. I bought some more pipe to give me that extra length but just a few more inches would have been nice.

      The water itself... To be honest, I can't taste much difference. It's good but, as mentioned, it tasted good anyway. I have noticed that flavored drinks seem to taste a bit better though. Maybe a hint less of a chlorine smell (though that wasn't really an issue anyway). But it's more about the health side of things anyway. It might be interesting to see the difference in TDS but I'm probably not going to bother.

      Oh, one other thing is that the shutoff exits to the right but my system is to the left. Not a big deal, just a little annoying. I couldn't see any way to switch it over.

      Edit: Having used for a few months, no complaints. There is a slight whine when running the faucet but no big deal. One thing that could have been included in the box would be replacement schedule labels. It's not hard to manage ourselves, of course but it would be a good way for the company to encourage filter replacements. An app might be an idea too for people who would use such a thing.
      34 people found this helpful
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    • Dennis Burt
      5.0 out of 5 stars Great clean water with easy install
      Reviewed in Canada on August 7, 2024
      Style: 50 GPD ROVerified Purchase
      This was a great system to install as the instructions and video made it very clear. I had two minor leaks but it was not the system itself but my the tightening of water line connections. I did not want to over tighten but a had to tighten 1/4 turn and bingo. I got a 3 year supply of cartridges so I should be set until 2027. My TDS reading once installed was at 9. Anything from 0 - 50 is very good drinking water. Very good reading. I am not sure about these tablets mark S have anything to do with the system and I must find out how to purchase more if required. Other than that minor issue, I am more than pleased with this osmosis system. Great value, easy install, great drinking water reading. Happy wife, happy life, for now.
      Customer image
      Dennis Burt
      5.0 out of 5 stars Great clean water with easy install
      Reviewed in Canada on August 7, 2024
      This was a great system to install as the instructions and video made it very clear. I had two minor leaks but it was not the system itself but my the tightening of water line connections. I did not want to over tighten but a had to tighten 1/4 turn and bingo. I got a 3 year supply of cartridges so I should be set until 2027. My TDS reading once installed was at 9. Anything from 0 - 50 is very good drinking water. Very good reading. I am not sure about these tablets mark S have anything to do with the system and I must find out how to purchase more if required. Other than that minor issue, I am more than pleased with this osmosis system. Great value, easy install, great drinking water reading. Happy wife, happy life, for now.
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    • CG
      5.0 out of 5 stars El mejor equipo de Ósmosis Inversa
      Reviewed in Mexico on May 23, 2024
      Style: 50 GPD ROVerified Purchase
      Fácil de entender. Fácil de ensamblar. Recomiendo lubricar las juntas con lubricante de silicona grado alimenticio antes de ensamblar. Ayuda enormemente y extiende la vida de los empaques. La instalación a la toma de agua es el paso crítico porque depende de la tubería. Desde ahí, todo muy sencillo. Claro. Excelente la válvula de autostop. Tener cuidado porque si le caen unas gotas de agua ya instalada, la almohadilla es muy sensible y se expande. La calidad del agua muy buen. El medidor (no incluido) marca 1ppm.
    • Johnny Bravo
      5.0 out of 5 stars Amazing System
      Reviewed in Canada on July 14, 2020
      Style: 50 GPD pH+ ROVerified Purchase
      For the money this is hands down one of the best systems. It was easy to install. The flavour of the alkaline water is great.
      We hooked it up to the fridge so it took a bit more to install it because of all the filling and emptying you need to do to get it set up. Before connecting it, I hooked up the faucet temporarily and drained it into the sink.
      The first day or two, there was a strange rubber-like flavour in the water. This is normal. The rubber bladder inside the tank needs a few cycles of expansion and contraction to loosen up. If you get that flavour or rubber, all you need to do is to completely drain the tank 2 times and then it’s gone. But make sure you drain it to the point where the water comes out as a trickle and you’ll know it’s completely empty.
      I have had it for 5 months and I think it’s ready for the first filter change. We have not had a single problem with the system. It does make a funny sound every once in a while but that’s just the bladder making noise.
      It’s a great product at a great price. Very well packaged and easy to understand instructions. It took me only 45 minutes to set it up.
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      Johnny Bravo
      5.0 out of 5 stars Amazing System
      Reviewed in Canada on July 14, 2020
      For the money this is hands down one of the best systems. It was easy to install. The flavour of the alkaline water is great.
      We hooked it up to the fridge so it took a bit more to install it because of all the filling and emptying you need to do to get it set up. Before connecting it, I hooked up the faucet temporarily and drained it into the sink.
      The first day or two, there was a strange rubber-like flavour in the water. This is normal. The rubber bladder inside the tank needs a few cycles of expansion and contraction to loosen up. If you get that flavour or rubber, all you need to do is to completely drain the tank 2 times and then it’s gone. But make sure you drain it to the point where the water comes out as a trickle and you’ll know it’s completely empty.
      I have had it for 5 months and I think it’s ready for the first filter change. We have not had a single problem with the system. It does make a funny sound every once in a while but that’s just the bladder making noise.
      It’s a great product at a great price. Very well packaged and easy to understand instructions. It took me only 45 minutes to set it up.
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    • Robert
      5.0 out of 5 stars Excellent product, easy to set up and works perfectly.
      Reviewed in Canada on December 20, 2024
      Style: 50 GPD ROVerified Purchase
      Excellent product, easy to set up and works perfectly.
    • Amazon Customer
      5.0 out of 5 stars Great water
      Reviewed in Canada on June 27, 2024
      Style: 50 GPD pH+ ROVerified Purchase
      The rate of flow is less than expected but is more than adequate to meet our water drinking needs and our coffee maker. It produces crystal clear awesome drinking water. I connected mine to my fridge, the results are great. No more bottled water. The install instructions are good. I recommend you read them carefully for the best results. I would buy again.