iSpring RCC7AK, 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 | Undersink Water Purifier, NSF 58 Certified with 75 GPD Capacity, Patented Tap for Easy Installation

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

I have been using the iSpring RCC7AK 6-Stage Reverse Osmosis Under Sink Water System for a while now, and overall I’m very happy with it. The difference in water quality was noticeable almost immediately. The water genuinely tastes better than bottled water, and I now drink more water daily because of it. The water pressure is also very good for an RO system; it fills glasses quickly and doesn’t feel slow or frustrating (please see attached video). Installation was straightforward with clear instructions, and everything feels well-made and solid. I also appreciate that it’s NSF certified, which gives peace of mind about safety and TDS reduction. After checking with a TDS meter, the reduction is impressive. Pros: -Water tastes clean, fresh, and pleasant -Good water pressure for an RO system -Strong TDS reduction -NSF certified -Build quality feels durable and premium -Saves money vs bottled water Cons: -Takes up some space under the sink -Initial installation takes a bit of time if you’re not DIY-confident -Filter replacements are an ongoing cost (expected for RO systems) Overall: This is a reliable, high-quality RO system that delivers exactly what it promises: great-tasting water with strong performance. If you’re looking to improve your drinking water at home, I would definitely recommend it.

I really love this. It’s pretty big so you need quite a lot of space under your sink. The filters are big but filtered water goes into a tank and the tank is big too! My man is pretty handy and was able to install this himself but there are a couple of things to be aware of. It comes with American fittings so you need to buy flexi hose to connect it to our sink. It also comes with its own tap so needs space to install this which inevitably involves some drilling in the sink or work surface. Installation isn’t necessarily easy and depends on having the right tools and correct parts for the job. The tap is quite small and the water comes out quite slowly. However, the water looks and tastes clean. I can’t drink regular tap water now as it smells funny. You never really know whether these things are working. I live in a hard water area. My new kettle had limescale in it within a week. Since using this filter there is not one single speck of limescale… that’s good enough for me! The filters need changing once a year and are pretty competitively priced. As well as taking things out the water, this also re-mineralises with the things you want to keep. I’m really pleased with this and the water definitely tastes better!

Good so far. Filters great. No more chlorine taste. The water taste is so much better but the pressure is very low. Tested the water and it is the best filter I’ve invested in so far.

This is by far the most superior RO system I've ever used. I have 6 of them and about to buy a 7th. Every family member and my company office has one installed. Incredible easy installation with all instructions online on Youtube. I've recommended this company to all my family and friends. Their service if you ever have an issue is just next level. They don't even ask "hey are you still under warranty" they will have the parts already being shipped to you expidited delivery before you even had a reply back. My only problem now is that I have to replace filters for 7 locations ;)

REF; RCC7AK 6 STAGE RO SYSTEM: Firstly, I would like to say that the customer service at iSpring is exceptional - Francis to be specific. I had a very minor issue that did not scare me away from this product nor create any annoyance re. installation. Francis quickly contacted and helped rectify a very minor issue I had, following up with me to try and rectify the issue asap - thank you Francis! Packaging & instructions/fitting: The box arrived well packed and packed so well that I would not expect damage during transit. Each item was in its own box and had very little movement. The items came out of the box easily and had no damage. Well packed. The instructions for the assembly and fitment were very detailed. If self-fitting this unit, you probably have some kind of idea about what you are doing so you may not need to use the instructions as gospel, but they do provide a very well detailed and easy to follow assembly instruction. The flow diagram was welcomed too. A nice quick reference guide to hosing. This helped me more than the instructions - I find visual instruction easier than detailed description instruction. Whether you work in fluid engineering or fancy the DIY challenge, the instructions supplied will certainly allow you to install with ease. It took me about an hour to install and commission/leak check. The unit (although it looks rather large) fits very easily inside of my 900mm wide cupboard. It even allows for space around the filtration unit and the reservoir for placing filter spares etc. It certainly surprised me with how well the unit fits inside of my cupboard. I expected to assemble it, offer it up to the cupboard only to find it was too large to fit and then need to send it back… but I could fit two RCC7AK 6 Stage systems inside of my cupboard. Perhaps it opens scope to add further filters elements onto this system in the future… Filters are easy to change. This unit comes with a filter housing removal tool to provide leverage on the housing. Install the filtration system above the base of your unit to allow ease of filter change. There is a detailed commissioning instruction near the end of the instruction so please do follow this for the correct initial start-up procedure to purge the pre-osmosis filters (ensuring you do not put carbon deposits into the RO (reverse osmosis) membrane. Supplied parts: During assembly, I happened to think to myself 'a 90 elbow fitting would be perfect here'... they had thought of that and supplied multiple fittings! More than I needed. The length of piping was perfect. I used about half of what was provided - even with a drain line that extended far down the waste pipe into the next cupboard (install horizontal and away from the u-bend trap to eliminate a dripping noise and potential backing up of sink waste into the drain-line in the event of blockage). All parts supplied fitted my standard UK kitchen (15mm comp / 1/2" BSPP) but I did use some PTFE between the threads just to seal them as the thread form is NPT and my kitchen is BSP (thread angles are slightly different and therefore do not mate perfectly). I have had no leaks in the week I have had fitted. Taste/Testing: The taste is incredible. It tastes pure and clean. No tang or bitterness. It tastes purer than the purest bottled water I have tasted. I will now avoid drinking water that has not been through my RO system. Bottled water at a push! I have (glass) bottles stored in the fridge filled with my RO water. Bottled water is nice... but iSpring RO water is second to none. I agree with another review here that I fill my bottle with this water and take it everywhere I go. See the images for the testing. I believe that these images speak for themselves. Obviously, the RO water cannot be TDS free due to the remineralisation process but down to 47PPM from 435PPM is an incredible job and there is a clear difference in the ‘clean’ taste even between RO water and bottled water. This is evidence enough that the water is truly forced through the osmosis filter. Alkalinity of this water is slightly higher (TAP is 7.66pH, BOTTLED is 8.70pH *Sometimes artificially raised using Bicarbonate of soda, RCC7AK RO is 9.72pH). Yes, I did calibrate my pH meter prior to use! I am yet to perform some detailed research into the difference a higher pH water provides but brief research suggests that it is easier for the body to consume. I will take higher pH being better for the body at face value at this point for this review. Overview: I would suggest that this unit is installed in every home for the sake of reducing the number of chemicals that are consumed through water. At the very least, bottled water should be consumed. Avoid tap water! For the small cost (yes, the cost of this unit is relatively low) this unit is 100% worth purchasing. Fitting is easy, it comes with a nice outlet for the water, water tastes incredible, and the customer service is outstanding. Every home should be fitting one of these units. And whilst you are at it... consider stopping using fluoride containing products such as toothpaste and mouthwash. Use fluoride-free alternatives. I have personally noticed positive differences with regard to dental/mental health. BUY the iSpring RCC7AK! – I was not provided any incentive to leave this review. All opinions are from my experience of using this product!

I wish I knew about these filtration systems years ago as this is now one of my most important things I have bought recently. Pure clean water from my tap which tastes just like bottled water, it's really that good. I have no clue about plumbing at all and still fitted this up myself with no major problems. All I needed was a little fitting from my local plumb store so I could attach the supplied cold water feed to my own water supply. The system is hidden away under my sink and the new tap looks great. Everything works exactly as it should, I'm over the moon with it and I'll never be without one from now on.

Not impressed, I've had this about 7 months now. When I first installed it the water was milky, I emailed the seller and he asked for photos of the set up which I sent but heard nothing back, I have since learned this is normal as it's small bubbles escaping from the filters and takes about 2 weeks to clear. However that never happened with us, our water has always had a funny smell to it, almost like the smell of washing machine water. We've never been impressed do we've never drank this water, however last week I finally had a spare few hours so I thought I'd look into it and maybe change the filters or something. I striped it down and found the sediment filter was still pure white, according to reviews after a few months it goes brown or yellow, also the main RO membrane felt slimy, again this is apparently not normal. Anyway, after a couple of hours of figuring out how this works it turns out it was connected up wrong, not my part but the parts that are pre connected and apparently 'ready to use'. Obviously my tank etc were now fully of none filtered water so getting this thing cleaned was next to impossible, it also had a tiny leak from the pre connected pipes that I just couldn't stop. I contacted Amazon about this and even though it's been 7 months they offered me a return. I have since bought another system off Amazon which is £149 and pumped. Although this has a slightly smaller drum the rest is about the same size and the quality of the connectors is far better. Also the instructions are far clearer and well written. We finally have clear and filtered water but not from the ispring system. I would save your money and search others on amazon.

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!

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.

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.

Estoy muy impresionado con el servicio al cliente que acabo de recibir de Ispring. Hace un año compré este sistema y me encantó porque el agua sabía muy bien y encajaba perfectamente debajo del fregadero de mi cocina. Hace unas dos semanas, dejó de entrar agua por los filtros. Llamé a mi electricista, quien lo arregló quitando la pieza que ya no funcionaba. Pero quería esa pieza y, viviendo en México, no la pude encontrar. Terminé enviando un correo electrónico a la compañía preguntando qué debía hacer. Sean me respondió en menos de 10 horas. Me pidió que le enviara una copia de la factura para asegurarse de que tenía la pieza correcta. Unas horas después me dijeron que la pieza estaba en camino y, a pesar de que la garantía estaba vencida, no me cobraron.