Stainless Steel Smart Reverse Osmosis Drinking Water Filter System, Tankless 400 GPD without Membrane

Bought this unit almost 9 months ago but didnt install it for awhile. When I did install, about 7 months ago, it was super easy and straight forward. I did watch the video which made the process go smoother. It is installed more remotely than under the sink mostly because I did not want to sacrifice the room under there, the unit is a tad larger than my old RO system from what I assume is the space for the built in pump. Even with it about 10 feet away from the faucet the pressure is fine and works for my needs. I did hook the refrigerator water up to the "RO" outlet on the unit with a T fitting and that pressure is noticeably lower than the faucet. I would suggest using the "non-RO" side if you plan to T it this way but thats just my 2 cents. Overall the build quality seems very nice, filters easy to replace (just had to replace the first stage cotton filter) and love the lack of flavor from the water. I really love the fact that this unit is tankless unlike my last RO system. With it being just myself and my son part time, having water sit in a tank is not my idea of a good thing. Plus the fact that you need to add air to the tank on the other style RO systems in order to keep the pressure up was not a fun task every 2 years or so. This one is much simpler to deal with, has the pluses of no tank and water tastes perfect! Overall very happy with my purchase and would suggest you pull the trigger if in doubt! Any questions I have had, which have only been a few, are answered via email very very quickly no matter when. Seems like support is there if needed with little delay, which I love!! Thanks again for a great product!

I've been in the water filtration industry 20 plus year and at first, this seemed to be a really good deal. I ordered the unit and failed to realize you also have to add a $130.00 membrane. This is my first gripe. Second, it's noisy. When dispensing water out the RO side the pump comes on and it's somewhat loud. Third, the faucet is not easy to install. It's a double shank and the two 13mm nuts on the bottom are hard to get a good seal from underneath the sink. My final disappointment is it's from China. Although it looks high quality the collar rings to seal the filter canister are difficult to tighten and seal even with the tool provided. I've already had one email go unanswered from the manufacturer. Buyer Beware!

-Reasonable price and size-Tankless, prevent secondary water contamination.-304 Food grade Stainless steel canisters-Dual filtration modes: purified water washing and pure water for cooking/drinking-Responsive email and good Customer ServiceI did a lot of research before buying my first RO system, and I finally decide to buy this one.It is my first RO system and my first water filtration system, I did not choose other filtration system and get my hand on RO system as I want to get pure water instead of just filtering something from the water and remain a lot of unwanted thing in the water. What I need is water that is as pure as possible, with a reasonable price, reasonable size as every consumer would do.The main reason I purchased this RO system is because the water does not contact with plastics as much as other RO systems, as they are made with plastics all over the their system. And I do not like plastic touching what we eat or drink. I'm trying to reduce plastics from our home as much as possible. There are plastic parts inside the system, those parts not on the surface you see, and hope they will be replaced with 304 Stainless steel in their next product so that the system would eventually be full 304 stainless steel, or at least those parts which "touches" the water. However, it is much better than or at least feel better than other RO systems have a water tank or filter tank you can see which is using plastic, I really DO NOT want to see that and I feel better to see stainless steel. I do not know what they use in those parts that I cannot see, but I could not find a better one yet, and I couldn't sure whether the stainless steel is really 304 food grade or how good is the quality, But I used over 5 months now, the water feels good and our family enjoyed drinking the water.The tankless design and high volume flow of the RO membrane give good enough speed to fill up the water jar or cup/glass, practical and convenient while without a water tank for secondary water contamination, which is a good thing for me.I love their customer service, Alex usually reply very quick, always within the same day, I am usually the slower one to response, lol.I cannot say this is the perfect RO system, it is still far from perfect, but it is still so far the best I can find.After talked the positive side, let's talk about some negatives, but I do not think they are show stopper for me, unless I can get a better one from somewhere which I do not see one now. But I hope Purify Guru will continue to improve and listen to their customer and made us stick with the brand. Everyone love quality products.The faucet came with the system looks nice, but the material or the build of the upper part of the faucet which is the water comes out from, is kind of too weak or thin and it is not stay firm when I turn it to left or right as sometimes necessary, but it does not have any leakage, so it is still fine.I put the RO system under sink, but the PE pipe come with the system was too short for me. However, they send me the PE pipe right after I send email to them, they are very responsive and helpful.I recently replace the 1st stage filter, I hang the system on the wall of the cabinet under the sink, and I found that the mental ring's thread is so sharp and cutting the plastic thread when I try to match them and tightening the mental ring, it was not smooth as I install the RO filter at the very beginning.The noise of the bump is ok, as I put it under the sink, it is better than acceptable for me, I think the function is more important and I do NOT think the noise is too big. But in some rare case, the bump did not activate when i turn on the pure water lever, no water is producing and the bump did not start working, and I need to turn off the pure water lever and turn on again to make it work, it is just a little problem and it is a rare case, but that scared the older users in my home and she though it was broken, lolIn summary, I recommend this product and I enjoyed using this system so far, it is convenient, easy to use, looks good and with reasonable size and price, and it is the best you can find even you are someone picky like me.