iSpring RCC7AK-BN NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink Patented Top-Mounted Faucet Design for Easy Installation

We recently installed the iSpring RCC7AK reverse osmosis water filtration system, and we've been very happy with it. The installation was straightforward, but it's worth taking your time and carefully following each step. We did run into one issue because we went back and forth between the YouTube installation video and the manual and overlooked the step of flushing the three pre-filters until the water ran clear before connecting the RO membrane. As a result, the RO membrane became clogged, and the system wasn't functioning properly. I reached out to customer support, and Laurence provided outstanding service. He was responsive, knowledgeable, and guided me through the troubleshooting process via email. He even sent detailed video instructions on how to check the tank pressure. Once we determined that the RO membrane had become clogged during installation, Laurence promptly express-shipped a replacement. After installing the new membrane, the system has been performing exactly as expected. With our water pressure at 65 psi, we're seeing a wastewater ratio of approximately 2.5–3:1, the flow rate is excellent for filling bottles, and the water tastes noticeably cleaner and fresher. It's reassuring knowing we're drinking high-quality filtered water every day. One modification I made was adding a tee fitting and shutoff valve to the 1/4-inch drain line. This allows me to divert the wastewater into a bucket for watering plants or simply close the valve and have it drain into the kitchen plumbing as originally designed. It's a simple addition that gives us the flexibility to reuse the water instead of letting it go down the drain. If you're looking for a reliable reverse osmosis system backed by exceptional customer support, I would definitely recommend the iSpring RCC7AK. Thanks again to Laurence for going above and beyond to make sure everything was resolved.

I've had this system for almost 3 years now and wanted to report it was an easy installation, easy to follow instructions, and has provided great tasting water for us the last few years. Recently it did develop a slight drip from the faucet valve so I reached out to see if I could purchase a replacement valve. Talked with Sean from ISpring customer service and although they did not have replacement valves, he promptly sent me a completely new faucet assembly to install, for free, even though the system was outside of the warranty. He was great to work with and resolved my issues at no cost, which was unexpected. Thank you and ISpring so much!!!!

I am very satisfied with this system. Installation was simple and the instructions were very clear and easy to follow. The quality of everything with system is also very good, feels very durable and like it will last a very long time. The water coming out of this system seems very clean and tastes great! the water flow from the included faucet is good, faster than what my fridge water dispenser puts out. Overall I'm very satisfied with this purchase! Had a couple questions during and after installation that Robert at support was very helpful and super fast to get back to me. I don't really expect that type of customer support from the majority of companies anymore, but the response time and knowledge and helpfulness were really above what I've come to expect nowadays, very nice to see and made me more confident in the decision to go with this system.

I’ve wanted one of these filters for years now, once I learned a bit about the chlorine, fluoride, and microplastics in my tap water. While my wife and son drink water from our Brita pitcher, I normally would just drink from our kitchen sink where the water isn’t as cold and not as painful for my sensitive teeth. I drink about two pots of coffee a day, take 1/2 gallon of water with me to work each day, and drink probably another 1/2 gallon per day while I’m home. It’s a lot of tap water! When I first discovered these filters, we were renting an apartment, so it didn’t seem worth the effort to install. Once we bought our house, there were a million other things to spend money on first! 2.5 years since we moved in, a solid Black Friday sale coupled with our wedding anniversary finally made this purchase happen. I ordered it at 11:00am this morning, and it was at my door before 2:00pm same day. I ended up installing the filters in my basement, directly underneath the kitchen sink, to save some space. The water tank is under the sink, for now (I may also move that to the basement). Having the filters in the basement made the install a bit slower, having to go up and down the stairs a bunch, but all in all it took me about 2.5 hours to install. I needed a drill to mount the filter rack to the wall, but other than that the only tool I needed was a pair of channel locks. The process was straightforward, and there was no point in time that I was confused as to what my next steps were. The only thing that tripped me up was the reverse osmosis filter itself, but that was only because I didn’t fully seat it in its housing at first. Once I fully popped it in, the housing cap screwed on, no problem The push-to-connect fittings are very easy to work with, and I had no leaks once I brought the system to pressure. There’s even an included auto-stop valve that’s supposed to detect leaks and shut off the water automatically, which is a great peace of mind. The instructions direct you to visually check the install each day for the first two weeks. I’ll be doing that, but knowing that auto-stop is on there still makes me feel much better about things (I’m an electrician, not a plumber lol). Not wanting to use the drain saddle, I ran my drain line directly to the utility sink in my basement. I didn’t plan for it, but being able to physically see water leaving the drain is a convenient way to be able to tell if the system is actively filtering water in the moment, or whether the tank is full The water tastes great, better than the Brita in my opinion. I bought the version that has the Alkaline filter final stage to remineralize the water for taste, and I’m happy with that decision. Highly filtered water often tastes bland, but that’s not the case with this unit. I could fill up a bottle for some fancy spring water with this stuff, and I doubt anyone would notice there’s a difference Product quality seems solid, and the reviews lead me to believe it’ll all hold up for years to come. The faucet is a little wobbly, but I understand it can’t be too tight without risking failure. The flow rate from the faucet is perfectly adequate for a glass of water, too. Not as fast as the tap, but that’s to be expected. Tomorrow it’ll get put to the real test, when I fill up my 1/2 gallon water bottle and brew a pot of coffee. The reservoir tank supposedly holds 2.6gallons though, so I don’t foresee any issues. The rest of the family wakes up hours later, and the tank will no doubt be refilled by that point. On initial startup, the first tankful took about 1.5 hours to fill up. Per the instructions, I then poured that first tank out, presumably to remove any potential manufacturing contaminants. That waiting game for the first good glass of water was probably the hardest part of the whole install I’ve wanted one of these things for years. I finally purchased and installed one today, and I’m incredibly happy with the end result. I wish I did it sooner, but the next best time is today, right? The company seems to stand behind their products in terms of warranty and returns, and at such an attractive price, there’s really not much risk in giving this filter a shot in your home. I think you’ll be as satisfied as I am!

These RO units are generally all the same you just have to pay careful attention to how the tubing connects to the various places on the unit. The hardest part is probably drilling the hole through the countertop, if you don't already have one. I find the tank to be a necessity, otherwise the water comes out very slowly. I gave this particular unit a 5 star rating because everything came with the unit, great price, water tastes good, nothing was left out, and the directions were clear and straightforward.

​Why I gave it 4 stars instead of 5 ​“It's a highly effective system that delivers exceptional water purity, backed by stellar overseas tech support—though you may have to navigate some initial technical hurdles and lackluster US-based phone customer service.” ​The Setup & Water Pressure Crucial Facts ​If you are considering this system, pay close attention to your incoming water pressure. ​The Pressure Drop: The system requires at least 45 PSI of incoming pressure. Be aware that you will lose about 6 to 9 PSI just passing through the Stage 1 to Stage 3 pre-filters before the water even reaches the RO membrane. ​The Waste Water Reality: If you cannot maintain the optimal 70–80 PSI, expect a massive amount of waste water. ​Installation: The instructions and installation process are not overly difficult. However, a major tip for success is to read the manual completely from beginning to end before you start assembling anything. Do not over tight the housing units, nothing leaked on my installation. I suggest adding pressure gauges on the tank , between booster pump and RO membrane. ​The Booster Pump & Technical Hiccups: ​To achieve optimal filtration performance, adding a booster pump between Stage 3 and the RO membrane is highly recommended. I paid an extra $100 for a new head configuration with free shipping, which was perfectly reasonable. ​My journey with the pump had a rocky start: ​The First Attempt: The first shipped head/pump assembly was incredibly quiet (you can barely hear it running on a standard 110V outlet), but it suffered from massive pressure spikes well over 100 PSI. This is a major safety hazard for a hose system rated for only 90 PSI. ​The Solution: Out of frustration, I was ready to pack up the entire system and return it. Fortunately, a replacement head and pump assembly was sent out, and the second unit works perfectly. ​Performance & Water Quality (Well Water Test) ​Once dialed in with the working booster pump, the efficiency and filtration capabilities are incredible. ​Efficiency: The system achieves an impressive 1:1 ratio (one gallon of pure water to one gallon of waste water). ​TDS Reduction: My source is heavy well water that already passes through a chlorinator, sulfur aerator, carbon filter, and water softener. The iSpring system stripped the remaining Total Dissolved Solids (TDS) down from a high 870 to an incredibly clean 56. ​Customization Note: The system came with a remineralization filter, but I removed it. If you prefer a crisp, pure water profile without a distinct mineral taste, the system functions perfectly without it. ​Customer Support: A Tale of Two Teams ​This is where the experience gets interesting. The support you get depends entirely on who you talk to. ​The Bad (iSpring US Phone Support): Unhelpful and indifferent. The representatives I spoke with over the phone showed zero interest in answering questions. One agent sounded like he had literally just woken up from a nap, offered no troubleshooting, and simply told me I had to deal with Francis. To make matters worse, they couldn't even provide a phone number for him. ​The Great (Francis - Overseas Tech Sales Support): Francis is the saving grace of this company's support division. Because Francis is based in the Philippines, the time zone difference means a strict 24-hour delay on email replies. However, the quality of service was top-notch, efficient, and ultimately solved my hardware issues with the replacement pump. ​Final Verdict ​Despite a frustrating middle phase with a faulty pump and useless US phone support, I am ultimately very happy with the system's performance. It turns harsh well water into pristine drinking water. Ultimately, a deionization resin filter will completely drop TDS to 1-2! ​Advice to iSpring: You need to seriously revamp your US domestic phone staff and hire more people with the competence and dedication of Francis!

I installed this in our motorhome. Second RO I've had and it was pretty intuitive. I placed it on our wet bay in case anything were to happen (as with water, it eventually does). I did a splitter so we can access water outside as well. Since we're @ rv parks, I also have a big sediment filter at the hydrant to help preserve my system given water quality varies park to park and is usually hard well water. I also have a household water softener before the RO. After almost a year of flawless performance/taste I still haven't had to change any filters. However, the lead clear filter casing lost it's integrity (formed a crack near and over the threads) and began leaking. I reached out for help and... Nick came to the rescue. He was very professional and responded quickly; sending a replacement housing. I wonder if they've changed housing styles/suppliers as the replacement wasn't a quick switch of the clear canister; I had to replace the head (which came with the replacement canister) as well which took more effort as it required removing the bracket from all the canisters, replacing the head and reassembling but it wasn't difficult - took about 30 min. As always, be gentle with screws going into plastic... (use a hand screwdriver...) Works great again and I look forward to many years of service.

Who knew I'd be glad there is no outlet under my sink? I bought this system after quite a bit of research because, without an outlet easily available for one of the much-more-expensive RO systems with a built in pump for high flow rates, this system seemed best for (1) ease of install and maintenance and (2) a straightforward remineralization option. Plus (3) it is relatively affordable, and (4) other reviewers have noted that the company is especially helpful with issues. So: (1) I did in fact install this myself with absolutely no prior experience with plumbing. I watched the installation video before ordering, so I knew I'd need to be comfortable drilling into my counter and sink discharge. In the end I got lucky and managed to get the faucet through my old sprayer hole in a 4-hole sink--I went ahead and updated the sink faucet to a sprayer model while I had the water supply shut off. Drilling into PVC was a new thing for me and I did have doubts several times because PVC is so slippery, but starting with the smallest bit and incrementing up one bit size at a time got me there! No leaks, and the rest of the install was absurdly straightforward plug-and-play, with most issues caused by my ancient plumbing (the hot water shut off under the sink has corroded, which didn't matter for the RO install but proved mildly annoying when replacing the main faucet). (2) More studies are needed on whether remineralization is better for your health, but I love the taste of the remineralized water despite hating my very hard pre-filtered water. I am fairly confident that I could easily bypass the remineralization step if desired. Being a massive nerd, I have subjected my guests to blind taste tests and they do choose the RO output as tastier than the unfiltered tap water but I think several would prefer the non-remineralized output, I am saving that experiment for when I have more time! (3) Turns out that this system outputs just the right amount of water for a hydrohomie household of 3. I wash fruit and veg with it, and fill all our water bottles for the day, plus fill water glasses when hosting small parties, and have not needed more capacity than the tank supplies. It's also super quiet, since it doesn't have an electric pump. I'm so glad I didn't stress about the lack of under-sink outlet because this more affordable option is actually perfect for my needs! (4) I did snap the tank valve on install which means I also get to weigh in on customer support. Nick was awesome! I tried using the online support form but the captcha thought I was a robot, so I called--Nick was patient and helpful on the phone, followed up promptly by email, and sent me two replacement valves that arrived in a few business days at no additional cost to me. Since this mistake on my end did put me back a couple of days on install, I will take this opportunity to recommend that you for sure follow the instructions not to overtighten the tank valve, which is clearly specified in the paper instructions but I wasn't thinking much about it because I'm a smaller person and rarely manage to overtighten anything. Good news is that even if you stall out a bit on the mostly straightforward install, it's super straightforward to turn off the RO supply and continue to use your usual faucet until you're ready for the next step. (The other adult in my household spent some time quite concerned that I'd need the whole house supply off while we awaited an emergency plumber, this is absolutely not a real concern!) Overall, if you're comfortable with a drill and a couple wrenches and have successfully put together flat pack furniture, and you check out your cabinet space/sink plumbing in advance, you should be able to install this yourself in a single day while still enjoying the use of all your other plumbing, and then you'll have plenty of lovely tasty water with no fuss. And even if you do manage to snap the tank valve somehow, you can still enjoy the use of all your other plumbing and also Nick will help, still no fuss!

Compré este filtro sin bomba por error y no funcionaba, pero después de contactar con ispring y hablar con Nick, me enviaron la pieza de repuesto que necesitaba. Excelente atención al cliente.

We’ve been using the iSpring RCC7AK system for a few weeks now, and we are genuinely impressed! The installation went smoothly, and the components feel high quality. Big thanks to Nick from the customer service team — he was extremely helpful and responsive throughout the registration process. One of the most impressive things: we’ve been using filtered water from the system in our glass electric kettle every day for two weeks — and there is absolutely no limescale at all. Not a trace. This alone is a sign of how well the system works. The faucet looks great and works perfectly, and the tank provides more than enough water for our daily use. Highly recommended! Thank you again, Nick — you’re doing a great job!

Ich habe lange nach einer zuverlässigen Umkehrosmoseanlage gesucht, da unser Leitungswasser hier sehr kalkhaltig und „hart“ ist. Gerade wenn man sich intensiver mit dem Thema Wasserqualität und Nährstoffaufnahme beschäftigt, merkt man schnell, wie sinnvoll ein solches System ist – und dieses hier erfüllt genau das, was ich mir erhofft habe. Die Installation war mit etwas handwerklichem Geschick gut machbar, alle Teile waren dabei und verständlich beschrieben. Besonders gefällt mir der zusätzliche Alkaline-Filter, der dem Wasser einen angenehm frischen Geschmack verleiht. Seit der Inbetriebnahme trinke ich deutlich mehr Wasser – einfach, weil es so gut schmeckt und man ein gutes Gefühl dabei hat. Für diesen Preis bekommt man wirklich ein hochwertiges System, das hält, was es verspricht. Absolute Empfehlung für alle, die Wert auf sauberes und gesundes Trinkwasser legen!

For more than 6 years I am happy that I found this system from a reputable brand and did not try to save a bit for cheaper alternatives. Here are my, time tested observations: 1. Installation Very easy to fit. It's fully DIY'able as long as you're able to connect it to the water supply. If you can't - don't worry, as in some cases there might be more complicated connections, where you need additional fittings like in my case, etc. In general - don't worry, no offence by no means as some people never did anything DIY, worry of flooding stuff, don't have tools, etc. it's completely fine. I am just saying that it can be done relatively easily and does not necessarily require a plumber :). But if you try it yourself, you'd be surprised how much you can do, especially with all youtube at your hands - become proud, stop being afraid of your handyman dreams and eventually start a full DIY renovation of your house haha! Joke with real background!) 2. Solid Quality. I've seen and serviced filters before, including at my friends and parents house and this one looks very well made when it comes to pipes, plastic housings, rubber rings, etc. Well, 6+ years so far is not a bad run, isn't it? The only weak point in my case is the filtered water faucet - it's leaking for a while inside the sink, but in fairness it saw so much pulling and twisting by my kids that I don't blame it. 3. Water quality & Taste Water quality was tested several times in the beginning and after filter changes and it is brilliant. Both pH wise and TDS (remember that it's mineralized back so account for it). I am going to tell you a super basic and even silly observation but in 6+ years my kettle was never washed and it looks cleaner and shinier inside than when it was new. No joke. And why I said it's silly, because RO systems filter much more than sediments, but micro stuff like bacteria and some viruses, metals, pfas and much more. Taste - no taste, just brilliantly clean and "tasty" water, hard to describe but in my family's head it's like "what ideal water taste should be". 4. Servicing If you did not install it yourself, trust me servicing (changing the filters) is even easier. You stop the water flow in filter and tank, unscrew using provided key, filter out + filter in, close well and test in the end to make sure no leaks. You can follow youtube too. It is really not hard at all. Filters are always for sale and you can get good deals if you buy like a 1+ years supply. In my experience, at least with Dublin water quality, which is not bad - even first sediment filters live much longer than recommended and when I replace them, they are just slightly coloured. But this depends on the water quality in your area of course. To finish with, a RO system brings amazing value for your money and I highly recommend to get one for long term health benefits, as no other filtration systems clean the water to this level of purity. Drinking and cooking becomes healthier and so do you. This particular one is used by our family every day and I can responsibly recommend it. Hope it helps even a bit & stay well and healthy! Cheers

There is no price on health of you and your family. Great contact with Francis with minor issue regarding leaking tap, next day new one was send to me, no extra costs.