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

I've had RO systems for the better part of 20+ years. Our household goes through a lot of fresh water daily, so having an RO system has paid for itself many times over. Even if you don't go through a ton of water for drinking, cooking, iced tea, etc...the convenience of not having to buy unlimited amounts of bottled water and/or filling water jugs at your local water store is definitely an added bonus. I've had 3, 4 & 5 stage RO units throughout the years and they've all produced great tasting water. My past 3 or 4 RO units (which are usually purchased when we move houses) have been Watts Premier models. They specialize is very fast & easy filter changes and they are definitely easy filter changes. However, you pay a little larger price for that convenience. Their 4-stage RO units run about $200 and the yearly filter changes run about $60. RO units also have 2 types of faucets: 1) faucets with an air-gap and 2) faucets without an air-gap. By definition: "Air gap faucets were designed to protect the RO system. In the event of clogging, a small amount of air, rather than dirty water, would go back into the RO system". The air gap will always make some noise when the tank is filling as air and water pass through the drain line and sound escapes from the little air gap hole. The Watts Premier RO systems have an air gap. If your system has an air gap, you cannot replace the RO faucet with a non-air gap faucet...you need to replace the faucets (if necessary) with the same kind. During my most recent search for an RO unit to install in a new home purchase, I came across this Express Water RO unit at an amazing price (which included a year of filter changes). I was a bit skeptical given the price, but the amount of solid reviews made it an appealing option. I made the purchase and had friend help with the install since I am a large framed man that does not easily fit under the sink area. After a month of use, I can say I am very happy with the taste, performance & overall experience with the RO. With that said, I found myself missing the benefits of the permeate pump that I had installed in my last house. If you just care about the RO review, then I am very pleased and give it 5 stars. If you want to know what a permeate pump is and WHY you should get one, read on. This is the permeate pump available on Amazon that I purchased and am reviewing below: https://www.amazon.com/gp/product/B005VPPRX4/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1 Let me start by saying I will NEVER have another RO system without a permeate pump again. Permeate pumps use the wastewater that is expelled during the RO process to greatly increase water pressure at the RO faucet, minimize wastewater and fill the tank in less time. They can be installed on nearly all standard RO systems aftermarket so there’s no need to buy a bundled RO system that includes the permeate pump (since most of those cost a lot more than buying the units separately). I was introduced to permeate pumps about 4 years ago. I purchased a Watts Premier RO system from Costco (when they still sold Watts Premier) and had it installed by a plumber (since I needed a hole drilled in my granite countertop). I consider myself pretty handy and although plumbing in general isn’t rocket science, I’m a large framed man that hates trying to squeeze under sinks to do pretty much anything plumbing related. After the RO was installed, I was getting smaller (and broken) pieces of ice at my refrigerator since my RO was feeding my ice maker through a longer 1/4” line from the kitchen island to the refrigerator. This a drawback of a lot of RO systems which feed ice makers that aren't in very close proximity. After researching I came across a permeate pump (sold through Watts Premiere) and made the purchase. The included instructions were specific for the RO unit I had and it was an easy install since the RO was already up and running. Immediately, you will notice several things with the permeate pump. 1) Permeate pumps make some noise. They generally click or “thump” every few seconds. This happens because the wastewater from the RO builds up pressure inside the pump that is then used to push fresh (permeate) water into the storage tank. When the pressure builds and releases, you get clicking or thumping until your tank is full. 2) Your RO faucet pressure increases dramatically. As a result of the increased permeate water being forced into the storage tank, the tank pressure within the tank bladder increases and you end up with water pressure comparable to your regular faucet. The line pressure at the refrigerator & ice maker (assuming you have them all hooked together) is also the beneficiary of the increased pressure and you get full sized ice cubes again. So, why wouldn’t everybody want one of these? Well, I think most people have never heard of them. If you have, then the results speak for themselves. HOWEVER, these do make noise...especially if your RO faucet has an air gap (that little hole in the back of the faucet that inevitably leaks water out of it when the drain line gets blocked with something). With an air gap, permeate pumps get VERY NOISY. The pump action not only clicks (or thumps) under the sink, but the air gap sound created from the pump gets much louder as well. The air gap noise on my Watts Premier Pure Plus unit was so loud I actually debated on getting another permeate pump in our new house. I ended up buying a highly reviewed non-air gap RO system from Amazon and had it installed for a month in my new house. As usual, the water taste and purity was perfect and I am pleased that my ice cubes were normal sized (since the builder installed a larger RO line from my island to the fridge). I just realized how much I was missing the RO tank pressure (which equates to faster filling of water jugs & cooking pots). I went back to Amazon and found this permeate pump which said it was the newer model that makes less noise. The unit arrived in about a week (no 2-day prime shipping available for it). I watched a YouTube video for installing it on a basic 5-stage RO and had it all hooked up in about 20 mins. I’m once again in RO bliss. The water pressure in the faucet just makes me smile...no more waiting a minute to fill a normal glass with water (OK it’s not literally a minute but felt that way to me). The noise is considerably less from the pump itself. I ended up buying some u-shaped plastic clamps (Amazon search: TmallTech Big Simple Clip Clamp 2.5" Bracket Reverse Osmosis RO Membrane Housing (Pack of 3)) that hold the permeate pump to one of the RO filters so the pump is not directly mounted to the cabinet wall (like it was at my previous house). Also, since I don’t have an air gap on this RO faucet, I have no additional noise from the faucet. If my house is silent, you still hear the pump cycling the water, but it’s minimal and it’s only until the tank is full. After that, it doesn’t cycle back on until water has been used from the tank. All in all, I missed the permeate pump benefits and will never have another RO system without one. I will also make sure I don’t get an RO with an air-gap faucet either. Hopefully this review helps people.

I purchased the 5 stage home drinking reverse system on March 1st, and it arrived at my north central Ohio home on March 6th. 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 bottom, with the RO filter and final charcoal filter on the top, in the horizontal position. The unit was complete with fittings to connect it under the sink, and includes the sink faucet with a nice mounting washer that fit in an existing hole in my stainless steel sink. It even included the safety clips for all of the push to connect fittings that makes them nearly impossible to come apart if the clip is in place. I installed the system on Saturday, the 7th. If I were to mount this under the sink, as it was intended, I am sure that everything I would need would have been there, except maybe for a fitting to tie into the water line. The one supplied is for a different size line than the ones in my home. I installed the unit in the basement up in the floor joists. I hung the manifold by two screws into a floor joist, next to a beam, so if I ever finish the basement, I would not have too much hanging down. The tank was 11-1/2” diameter, and it would not lay above the beam as I had hoped, so I ripped down a 2X4 to 2-1/2” wide, and tied it onto the 9” floor joists with a couple of dry wall screws, and put a piece of plywood on it with some more drywall screws and laid the tank on the shelf, directly behind the manifold. I wanted this unit to supply water to my sink, my refrigerator, and my Keurig coffee pot. I tied into the water line, through an existing saddle valve that was used for water to the refrigerator. I ran the supply line, about 10’ to the RO unit, and fed it through a supplied valve. The plumbing was very easy and straight forward. I did add a permeate pump, which I also purchased from Amazon. It was the ERP1000-JG-S and it came with fittings, some tubing, and a mounting bracket which I attached to the manifold on the left side by drilling two holes. I probably would not have needed the pump as I have 70psi water pressure, but my water is from a rural water company, and is fairly expensive and I didn’t want to put too much down the drain so the permeate pump would waste much less as it relieve the backpressure the RO water puts out as it tries to fill the tank and uses the waste brine as the pumping power source. I stepped the ¼” output line to 3/8” and ran it through a “T” to branch over to the sink, and back to the refrigerator and coffee maker. Near that end, I stepped it back down to ¼” to go to those appliances. This allowed me to make a longer run with less pressure loss. I also purchased the HM Digital TDS-EZ Water Quality TDS Tester and it arrived before the RO system, so I tested the water and it was 172ppm Total dissolved solids. I took the tester to work, and compared it to a similar unit we had at work as we have a large, commercial RO unit there that produces up to 600 gallons a day. The low cost HM Digital read identical to the high end unit we had at work. On my first batch of RO water, I tested it and it was at 19ppm TDS, which is a great number considering, the first tank gets dumped as it had impurities in it from the coating on the RO membrane and the other filters. After two weeks, the water quality has settled in at about 15ppm TDS. The water from this unit tastes great, with absolutely no odor, and is of very high quality. I ran around for a day, testing every brand of bottled water I could get my hands on with the HM Digital TDS meter, and found that the water through the RO system is as good as, and better than most bottled water you buy. I doubt that you will find a better unit than this for twice the price. I looked at the big box stores, and most of the RO systems they sold used custom filters that they rip you off for. The filters in this unit can be purchased at a lot of different vendors, and the four extra filters they supply makes this an even better value. They do not supply an extra RO membrane, but that is usually rated to last up to 24 months so it won’t need to be replaced until after the extra filters have been exhausted. Plus, if you want a higher capacity unit, you can purchase a higher capacity RO membrane, which I may do when I wear this one out after a couple of years, but for right now, it supplies all the clean water I need. One last note, if you are looking for a Keurig coffee maker with a water supply, you may not find it. I added a Okeler Adjustable Mini Plastic Float Valve which I also purchased from Amazon to mine as I got tired of filling it everyday.

Simple and amazing! I live in a city with awful water; it’s terrible quality, full of forever chemicals, and tastes like dirt. We were slaves to one-use water bottles until this easy solution. Installation is simple enough and the customer service was excellent when I had questions. I’m an advanced-beginner home DIY-er and with the videos and written instructions, I installed this over a few days taking about 2 hours each day. I took my time double checking everything at each step. I experienced no problems or leaks. I’ve had it installed and running for about 3 weeks now. I did a lot of research for which filter to use, both brand and type. RO with remineralization is the best way to go. This brand does it all and at a great price with easy self installation. I would recommend this to everyone, seriously. It does require a separate beverage faucet, which I thought I didn’t want at first. I thought wanted every drop of water in my kitchen sink fully filtered. But without pricey full-house filters, that can’t be achieved. This is a nice alternative that lets you keep water pressure for washing dishes. The beverage faucet itself has great flow rate. Size: I have a small amount of space under my cabinet because I have a large disposal underneath. It still fits beautifully and I even have space for a little bit of storage under the sink. I have a one drain sink with a disposal, and I had to buy a separate attachment to make sure the filter drains properly. A plumber gave me the attachment tip. We’ve been making ice and drinking clean, great tasting water and we’re so thankful for this affordable and amazing product. Get it.

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.

I just got this RO system installed and producing water but early on, the purity of the water is exceptional. I’ve sold $200,000 commercial RO skids that have rejection rates of 98 to 99%. That means the amount of total dissolved solids the unit removes. So if the incoming water has a TDS of 100, then the output water will have a TDS off 1 to 2. Since installing this system, flushing it for hours as you need to; I have two 4 gallon tanks that have filled with RO water and the TDS readings are outstanding. I just checked it and the TDS is now 1.04 with an incoming TDS of 357. Most home RO systems have a rejection rate between 95-98%. As of now, it’s way better, but this can change with use/time I’ll try to update this post as our system ages. At this point though, I’d highly recommend this system. High quality, great manual/ instruction’s

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

The water comes out very clean, with better taste and no odors. Installation was easy, and the unit includes high-quality extra filters, giving you longer use without worries. I recommend it for both personal and commercial use due to its efficiency and durability.

The Express Water RO5DX 5-stage reverse osmosis system was a smooth install—took me about 1.5 hours solo. The kit includes everything needed, including the feed adapter for the cold water line, which made the connection process simple. I did order an extra 25' LLDP tubing since the included lines are pre-cut for standard under-sink setups, and I needed extra length to provision this unit for my garage fridge’s ice maker and filtered cold water line. One important tip: allow time for the initial drain-and-fill cycles of the RO tank before hooking it up to your fridge. Mine took about half a day and four full cycles to flush out all the sediments and get clean water flowing. It’s worth the patience to ensure optimal taste and performance. This is my second RO system (I already have a GE unit under the kitchen sink), and the Express Water unit performs well as a dedicated secondary setup. Once installed, water flow is consistent and the taste is crisp. Highly recommended for anyone expanding their filtered water access—especially for garage or utility setups.