iSpring RCC7AK 6 Stage Reverse Osmosis Water System Under Sink with Alkaline Remineralization, NSF Certified, 75 GPD, TDS Reduction

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!

I have had one before therefore for our new property it was the obvious choice. Very robust, easy to assemble with clear instructions. Very well made. The water now is safe and tastes great especially with the additional alkaline add back cartridge. The tank is big so there is always water available for drinking and cooking, rinsing food etc. Why buy and carry litres of bottled water. RO is the way to better sustainability.

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.

I would give 5 stars but for the following reasons I won’t. The instructions could be better the following ways; 1) More specific e.g coded parts. 2) some steps omitted a clear explanation altogether e.g the leak stop valve step had no instructions how to setup. 4) Ambiguity surrounding adapters and sizes. For example, I’m not sure if the cold water valve is even suitable for my UK line because it seems the instructions are for American systems. I made some adjustments to the supplied cold water supply valve (all with the provided parts) so that it would fit but not sure if this was allowed due to the ambiguity. (I think is fine since no leaks and water is filtered correctly when drawing from faucet). - Also, measurement sizes; small issue but I’m not sure whether the tank size specified is US gallons or UK gallons, supplying this system in the UK should mean they alter their product to the UK market. 3) the troubleshooting sections has no information on fluctuating water pressure from the main cold water lines. (More context below). I was left confused after being 99% certain I installed the system correctly and I had (on paper) consistent cold water pressure (tested). After installation my water was cloudy and grey, the instructions says this is normal due to air and is safe but this information is incorrect and maybe dangerous. In my case, it was not air. Testing this cloudy water it showed tds ppm reading of 70~100 from a municipal water tds ppm of 330~450 (London tap water before filtering). I later discovered it must be carbon deposits but unsure how these were deposited since I correctly followed the instructions flushing the pre carbon filters and others as per instructions. After long and careful research I came to the conclusion that the cloudy grey water was caused by water pressure fluctuations from the washing machine when it was being used. In summary; there is no information or section about what to do if water pressure is affected periodically by pressure fluctuations due to different appliances which use the same cold water line as this filtration system. Which is a major caveat/issue, for some reason acknowledgment of this issue is omitted. This issue regarding fluctuations I think can be solved using a pressure regulator.

The best thing I did in my life. Amazing filter. Super 👌

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!

Its been four years with this system in our house, and we still love it and it still works wonders to the water. The filter changes are reasonable in terms of timing and effort needed. Changing the RO filter itself was the most laboursome, but thats only every 3 years. The glass kettle has been clear since we intalled the system, the coffee tastes better, not to mention the water itself. A few months back the faucet started leaking water when closed. We contacted the customer services, and Francis was very responsive and helpful, and theres a replacement faucet on its way to us. Thank you We've had this system for about a month now, and are so happy with it. The installation was straightforward, with clear instructions and video, the parts are all well marked and colour coded, and everything seems to be made of sturdy good quality materials. During the first week one of family members complained of plastic smell in the water, and we were getting concerned, but it went away. Now we are all loving this water so much! Everything tastes better with it - coffee, tea.. and I'm noticing everyone is drinking more water now. So far we feel the value for the money is great, and the mineral stage probably makes quite a difference in taste. Will see how the system continues to perform over time.

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.