Max Water 5 Stage 50 GPD (Gallon Per Day) RO (Reverse Osmosis) Standard Water Filtration System - Under-Sink/Wall Mount (Without Tank & Faucet) - Model: RO-5C3


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$116.95

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  • Great tasting water: Max Water standard 5-Stage Reverse Osmosis RO Drinking water filter system, effectively filter out impurities. Filters down to 0.0001 micron.Experience fresher healthier baby formula,tea and coffee,better tasting foods and crystal clearer ice cubes, good taste.
  • Quality components: We ensure highest reliability and low maintenance for many years to come. All tube, quick push fittings, storage tank,RO membrane is manufactured with food grade quality to provide pure clean water.
  • System Specifications: Sediment + GAC + CTO + RO + Inline Post carbon. Waste ratio is 1 : 2 (RO : Waste); 95 - 98 % TDS filteration rate depending on input water quality, pressure & temperature. Recommended operating pressure is 40 - 80 psi (city water). Recommended to add Max Water booster pump for well water filtration.
  • BPA free components: Our water filter system doesn't contain Bisphenol A or other toxic plastic materials. We consistently provide products and services that meet customer quality requirements.
  • Why Max Water: We have 15+ years of experience in water filtration industry providing solution with a smile to millions of families across North America. Make Max Water your solution to all your filtration needs.
Brand Max Water
Special Feature Multi Stage Filtrartion
Product Dimensions 15"L x 5.25"W x 16"H
Package Information Tank
Installation Type Under Sink
Power Source Gravity-fed/Water Pressure
Item Weight 6.42 Kilograms
Model Name RO5S26
Lower Temperature Rating 40 Degrees Fahrenheit
Operating Pressure Range 45-80 PSI
Material Without Tank & Faucet
Included Components RO System

  • bethrose1917@gmail.com

    08-03-2026

    I have ordered thousands of items from Amazon over the years. This was the BEST equipped item I have ever seen. It came with a thorough instruction package, including a full diagram, booklet, and pamphlets. In addition, the kit included tubing, valve, wrenches, just incredible. I needed a system that did not have a faucet or tank since I already had those items and I just needed to replace the reverse osmosis filtering system. It installed easily and all the connections worked the first time. After reading through everything a couple times I think it took about 30 minutes to install to my faucet and my storage tank. Flawless, great product, thank you. The water tastes great and there is plenty of water pressure.

  • mueller.maye@grimes.info

    08-03-2026

    I'd like to point out that I am not a new user to Reverse Osmosis filtration. I have extensive experience in this arena. I purchased this unit only because the housings on my 15 year old drinking system was starting to show its age. Overall, the housings, and packaging seem to be of good quality. Fittings are nice and everything is leak free. The trouble I had with this system was the extended flush time required with the RO Membrane. RO Membranes (what actually produces the clean water and the heart of the system) come vacuum sealed from the manufacturer with an anti-microbial agent that preserves the shelf life of the filter. For a typical membrane this takes about 3 gallons to flush it out. Without adequate flushing, the water will smell and taste like sulfur. The one supplied with this system took 24 hours (50 gallons) to flush out the smell. I contacted the seller about the issue who responded that it's not possible for it to produce this smell and that it must be my source water. I replied with a water quality report as well as the technical explanation for why this was happening to which I got no response or resolution. If you are not aware of this and set the system up to run through the taste filter, you are likely to not notice the foul water. That said, it is not harmful, though you should flush your first tank full of water to remove as much chemical as possible. I ended up replacing the membrane with a Filmtec 50GPD unit, which has produced better water. In the end, I still think the cost of the unit and the quality of the housings make for a good buy, just be weary of the membrane flush time.

  • tillman.felton@sawayn.com

    08-03-2026

    Don't buy from this manufacturer unless you want to replace wood floors and your the sink plywood!Here is why. Due to poor design the O-ring seals at the top of the filters leak intermittently. lJust a few months after purchase while still under warranty I noticed a slow leak from the top of the middle filter. I contacted the manufacturer asked about warranty return/replacement and all they did was send me a link of where to purchase a new O-rings. Thought that was pretty lousy response but, $14 later replaced the rubber O-ring that was leaky. Now it's off warranty by a few months and the unit leaked again but this time causing water to ruin my oak kitchen floors and the floor of the under sink cabinet. I couldn't find where the leak was from but ended up replacing our ruined wood at my expense. The unit was leak free for the past few weeks but just tonight I came home to the same issue. It happend again and water again flooded the newly replaced floors and cabinet. So this time I put the entire unit in a pan and watched it for a few days. I found a periodic leak coming from a different O-ring filter. Now I've got the same problem once again. I guess this unit is going to the dump but I wanted to warn everyone not buy this unit unless you want this kind of headache to happen to you.

  • loganscott@microsoft.com

    08-03-2026

    This is a very good deal it you are looking to give a total refresh to your RO filtration system.Everything is already assembled, and so for a fair price you are getting all new filters with transparent housing, etc.One important plus is that these new filter housings now have double o-rings, this really helps, and drastically reduce any chances of having water leaks.

  • yandevyatkin9@gmail.com

    08-03-2026

    Unit is what I expected but since no holding tank is supplied they shown not have an outlet for a tank.

  • rsveralindaoy9974@gmail.com

    08-03-2026

    Highly reccomend, 1 year later and still going strong!

  • 测试2

    08-03-2026

    Geeat!!

  • nelmamadeira388@gmail.com

    08-03-2026

    Very easy to install but water tastes funny

  • wdouglas@hotmail.com

    08-03-2026

    The one way check valve did not operate correctly so all my water was going down the drain. After lots of fooling around with it thinking I did something wrong I ordered new check valve. Problem solved. Works great now. Highly recommend ordering spare one way check valves. PS and to be honest I wasn't surprised that the item I purchased would work properly. You get what you pay for and it's made in China.

  • vwindler@gmail.com

    08-03-2026

    received my filter a couple of days ago have installed it. it worked fine very easy to installed thank you

  • moumakwantukarobert@gmail.com

    08-03-2026

    Was easy to install I all ready had one . But need to get a new one . And this one clear housing .

  • ovdarjamaryar7771@gmail.com

    08-03-2026

    I bought this to replace a system that I have had for a long time, but had a cartridge crack.My son purchased this system recently for a salt water setup and because of his experience with it, I bought it.It was super easy to install. It fits under the sink well.I have had no leaks. The clear cartridges are nice to keep an eye on the filter conditions.The biggest thing for me- the water tastes better than my old system ever did, even when it was new. I can't even put into words how much better the water tastes.

  • ndlenkabettyug7443@gmail.com

    08-03-2026

    I worked in a refinery and this is the same system we used for our drinking water, it is an excellent choice for the price. The filters came already installed. I didn't check to make sure they were tight and they leaked. The quarter inch stainless steel water supply valve kept leaking because the threading was not tapered. I installed a different valve.

There have been no reviews for this product yet.
  • bet******

    I have ordered thousands of items from Amazon over the years. This was the BEST equipped item I have ever seen. It came with a thorough instruction package, including a full diagram, booklet, and pamphlets. In addition, the kit included tubing, valve, wrenches, just incredible. I needed a system that did not have a faucet or tank since I already had those items and I just needed to replace the reverse osmosis filtering system. It installed easily and all the connections worked the first time. After reading through everything a couple times I think it took about 30 minutes to install to my faucet and my storage tank. Flawless, great product, thank you. The water tastes great and there is plenty of water pressure.

    Image Image

  • mue******

    I'd like to point out that I am not a new user to Reverse Osmosis filtration. I have extensive experience in this arena. I purchased this unit only because the housings on my 15 year old drinking system was starting to show its age. Overall, the housings, and packaging seem to be of good quality. Fittings are nice and everything is leak free. The trouble I had with this system was the extended flush time required with the RO Membrane. RO Membranes (what actually produces the clean water and the heart of the system) come vacuum sealed from the manufacturer with an anti-microbial agent that preserves the shelf life of the filter. For a typical membrane this takes about 3 gallons to flush it out. Without adequate flushing, the water will smell and taste like sulfur. The one supplied with this system took 24 hours (50 gallons) to flush out the smell. I contacted the seller about the issue who responded that it's not possible for it to produce this smell and that it must be my source water. I replied with a water quality report as well as the technical explanation for why this was happening to which I got no response or resolution. If you are not aware of this and set the system up to run through the taste filter, you are likely to not notice the foul water. That said, it is not harmful, though you should flush your first tank full of water to remove as much chemical as possible. I ended up replacing the membrane with a Filmtec 50GPD unit, which has produced better water. In the end, I still think the cost of the unit and the quality of the housings make for a good buy, just be weary of the membrane flush time.

  • til******

    Don't buy from this manufacturer unless you want to replace wood floors and your the sink plywood!Here is why. Due to poor design the O-ring seals at the top of the filters leak intermittently. lJust a few months after purchase while still under warranty I noticed a slow leak from the top of the middle filter. I contacted the manufacturer asked about warranty return/replacement and all they did was send me a link of where to purchase a new O-rings. Thought that was pretty lousy response but, $14 later replaced the rubber O-ring that was leaky. Now it's off warranty by a few months and the unit leaked again but this time causing water to ruin my oak kitchen floors and the floor of the under sink cabinet. I couldn't find where the leak was from but ended up replacing our ruined wood at my expense. The unit was leak free for the past few weeks but just tonight I came home to the same issue. It happend again and water again flooded the newly replaced floors and cabinet. So this time I put the entire unit in a pan and watched it for a few days. I found a periodic leak coming from a different O-ring filter. Now I've got the same problem once again. I guess this unit is going to the dump but I wanted to warn everyone not buy this unit unless you want this kind of headache to happen to you.

  • log******

    This is a very good deal it you are looking to give a total refresh to your RO filtration system.Everything is already assembled, and so for a fair price you are getting all new filters with transparent housing, etc.One important plus is that these new filter housings now have double o-rings, this really helps, and drastically reduce any chances of having water leaks.

  • yan******

    Unit is what I expected but since no holding tank is supplied they shown not have an outlet for a tank.

  • rsv******

    Highly reccomend, 1 year later and still going strong!

  • 测******

    Geeat!!

  • nel******

    Very easy to install but water tastes funny

  • wdo******

    The one way check valve did not operate correctly so all my water was going down the drain. After lots of fooling around with it thinking I did something wrong I ordered new check valve. Problem solved. Works great now. Highly recommend ordering spare one way check valves. PS and to be honest I wasn't surprised that the item I purchased would work properly. You get what you pay for and it's made in China.

  • vwi******

    received my filter a couple of days ago have installed it. it worked fine very easy to installed thank you

  • mou******

    Was easy to install I all ready had one . But need to get a new one . And this one clear housing .

  • ovd******

    I bought this to replace a system that I have had for a long time, but had a cartridge crack.My son purchased this system recently for a salt water setup and because of his experience with it, I bought it.It was super easy to install. It fits under the sink well.I have had no leaks. The clear cartridges are nice to keep an eye on the filter conditions.The biggest thing for me- the water tastes better than my old system ever did, even when it was new. I can't even put into words how much better the water tastes.

  • ndl******

    I worked in a refinery and this is the same system we used for our drinking water, it is an excellent choice for the price. The filters came already installed. I didn't check to make sure they were tight and they leaked. The quarter inch stainless steel water supply valve kept leaking because the threading was not tapered. I installed a different valve.

    Image

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Next page 5stages design

Perfect fit for your under sink

Our system is designed to fit perfectly under your sink. Its sleek and modern look not only enhances your kitchen’s aesthetics but also improves water quality. Enjoy the benefits of pure, clean water with a system that integrates seamlessly into your home.

* The inclusion of tank and faucet depends on the specific system you choose. Be sure to check the product options and details to ensure you select the version that best suits your needs.

5stages 5-Stage Filtration

Our system utilizes five stages of filtration to effectively filter out sand, dust, sediment, chlorine and other impurities from your water.

Healthier Hydration Healthier Hydration

Enjoy peace of mind with pure, safe water for drinking, cooking, and more. No more worrying about water quality affecting your family's health.

Great-Tasting Water Great-Tasting Water

Experience the pleasure of drinking water free from unpleasant tastes and odors. Make drinking water a pleasure.

5stages Sustainable Solution

Say goodbye to plastic waste. Our system provides a sustainable water solution that's both cost-effective and does not affect the environment.

Previous page Five-Stage SED-GAC-CTO RO-POST CARBON Next page 1 5-Stages Filtration 2 SED-GAC-CTO 3 RO membrane-POST CARBON Previous page Easy Installation Sustainable Solution Great Taste Next page 1 Easy Installation 2 Sustainable Solution 3 Great Taste Great Taste

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