---
product_id: 82522998
title: "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"
brand: "ispring"
price: "€ 716.46"
currency: EUR
in_stock: true
reviews_count: 8
category: "I Spring"
url: https://www.desertcart.de/products/82522998-ispring-rcc7ak-nsf-certified-75-gpd-alkaline-6-stage-reverse
store_origin: DE
region: Germany
---

# 75 gallons purified daily NSF/ANSI 58 certified system 6-stage advanced filtration 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

**Brand:** ispring
**Price:** € 716.46
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with pure, mineral-rich water—because your health deserves the best.

## Quick Answers

- **What is this?** 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 by ispring
- **How much does it cost?** € 716.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/82522998-ispring-rcc7ak-nsf-certified-75-gpd-alkaline-6-stage-reverse)

## Best For

- ispring enthusiasts

## Why This Product

- Trusted ispring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Crystal Clear Filter Monitoring:** Transparent first-stage housing means you always know when it’s time to replace filters—no guesswork.
- • **Trusted Support & Easy Maintenance:** Lifetime US-based tech support plus simple, quick-change filters keep your system running flawlessly.
- • **Effortless Top-Mounted Installation:** Patented design lets you install entirely from above—no under-sink wrestling required.
- • **Industry-Leading Contaminant Reduction:** Removes up to 99% of over 1,000 contaminants including PFAS, lead, fluoride, and chlorine for peace of mind.
- • **Alkaline Mineral Boost for Healthier Water:** Patent-pending remineralization stage balances pH and adds essential minerals for crisp, fresh taste.

## Overview

The iSpring RCC7AK is a premium 6-stage reverse osmosis water filtration system delivering up to 75 gallons per day of NSF/ANSI 58 certified purified water. Featuring a patented top-mounted faucet design for hassle-free installation, it includes a unique alkaline remineralization stage that restores essential minerals and balances pH for superior taste. With transparent filter housing for easy monitoring and proven removal of over 1,000 contaminants including PFAS and heavy metals, this under-sink system combines cutting-edge technology with trusted American customer support for a long-term investment in clean, healthy water.

## Description

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 Filtration Systems - desertcart.com

Review: AMAZING REVERSE OSMOSIS WATER SYSTEM - I’ve been very impressed with the iSpring RCC7AK reverse osmosis system. The improvement in water quality was immediate — clean, crisp, and smooth tasting. The alkaline remineralization stage is a big plus and really makes the water taste better than bottled water. Installation was straightforward, and the system has been running flawlessly. Filter replacements are easy and reasonably priced, which makes this a great long-term investment. I also want to highlight iSpring’s customer support, especially Nick, who was incredibly helpful and knowledgeable. He took the time to answer all my questions, addressed my specific needs, and made the whole process stress-free. It’s rare to get that level of support these days. Overall, this is a high-quality system from a company that truly stands behind its product. I would definitely recommend the iSpring RCC7AK to anyone looking for cleaner, better-tasting water.
Review: Very good system/not so good paperwork - 5/9/2017 - Upgraded to 5 stars. You're supposed to change the filters once every six months. It has been three years since I have installed this system and I have not done a thing to it. I should also note we have HORRIBLE water in my area. Today, I decided to purify it and change the filters. So far, I've only removed the third-fifth stage filters so I can purify it (don't want the natural water through the system, so I left the first and second stage in). For three years of use, I cannot believe how clean the third stage and membrane cylinders were. Moreover, the water still tasted fantastic. Even if the company has not fixed their instructions (see below), the performance of this RO unit is well worth the price. ------------------------ I'm installing this system now. When I opened the different plastic parts, they were all wet! Literally water in every one. So I came on line to find out why/call the company. Turns out, they're open 9-5, EST. Would be nice if they remembered that there was a lot of people on the West Coast as well. Nevertheless, after searching around, I found this line. "Our RO systems are 100% wet tested before shipping " Great! But, what does that say about how they dry/ship the product if they're wet when they're being shipped? Or, for that matter, how do I know mold isn't growing in the lines on the faucet side of the filters? Not impressed so far, but will update again as I finish and see how things go. UPDATE: The RO system is now installed. Problem: There was a few frustrations with the installation, but only one that is the fault of the company: the instructions! They are not complete by any stretch of the imagination. If you're looking for a simple start here and end here with a functional RO system, you won't find it. What you do get, is a set of papers that show you two or three independent how-to's: how to install the water tank shut off valve; how to install a spigot; how to install the filters. There's no steps for putting the individual units together as a single RO system. They do, however have an expanded picture on the front, so if you're a visual learner, you can put it together (and really, it's not *that* difficult). Yes, there are videos on the website/youtube, but I expected at least a decent set of written instructions. More Positive note: After everything is installed and I tasted the water, it was exactly what I was hoping for. I was replacing another RO system (five stage) and had bought the six stage with the hope of reintroducing a little more taste to the water. It did that, and did it well. By that, I mean, it's almost unnoticable, and that's a good thing. There's just the hint of taste as you would expect in good water. It's not a taste that will overpower anything you use it to cook in, or anything you mix it with. We filled and emptied the tank twice before keeping the water (I tasted it on the second empty, and it was already good, but we went ahead and emptied it again just to be sure). So, thumbs up for that. ---------------- Installation tip: if you're replacing another RO system, make sure the hose sizes are the same. I didn't, and I am frustrated because I had to tear out all the connections (or by reducers). This issue has nothing to do with iSpring, it's just my own lack of checking. So, make sure you check the size of hoses you're replacing. The hoses in this system are ALL 1/4 inch. And now, I have to go replace a leaky shutoff valve . . . but that isn't iSpring's fault either since I bought it at Lowes for this project. Oh, and one last thing. Note how quickly my review was responded too by the company, and how they were NOT defensive. They explained what they did, and offered help. That alone is worth the headaches mentioned above. Updated from 3 stars to 4 stars. Bad paperwork and shipping wet plastic parts kept me from the fifth star, but don't let that influence you not to buy this RO system. It looks as though, in hindsight, it's going to be worth the money. Update #2: Great tasting water, and worth the hassle/headache. I'm still deducting a star for the bad set of written instructions, because they really are that bad, but pairing it with the pictures and the video, anyone should be able to put it together. It is definitely worth it. Update #3: Have system for almost a year, now. Had one leak when a hose cracked. Not sure whether to blame that on the company, or on my installation. Nevertheless, water is still tasting great and we've had no other problems at all with the system.

## Features

- PATENTED DESIGN – The top-mounted fastener allows for easy countertop installation entirely from above, eliminating the hassle of tightening the nut from underneath the sink.
- MINERAL BOOST – The patent-pending natural mineral AK stage delivers spring water with a balanced, healthy pH and multiple essential minerals.
- SEE WHAT’S CAUGHT – The transparent first-stage filter housing makes it easy to monitor contaminant buildup, ensuring timely filter changes.
- NSF 58 CERTIFIED RO SYSTEM – Unlike other brands that lack NSF certification or full system certification, our RCC7AK is certified to NSF/ANSI 58 standards for the entire water filtration system.
- EFFECTIVE FILTRATION – Reduces TDS (93-98%), PFAS (96-99%), Chlorine (95-99%), Asbestos (>99.7%), Barium (>98.4%), Cadmium (>98.8%), Chromium (>99.2%), Copper (>97.8%), Fluoride (>97.4%), Lead (>98.9%), Selenium (>99.0%), and over 1,000 other contaminants.
- EASY INSTALLATION – The RO water system features a DIY-friendly design with quick-fitting connections, a clear manual, and step-by-step videos for a hassle-free setup.
- TRUSTWORTHY SUPPORT – America’s favorite RO brand, backed by lifetime technical support in Atlanta, GA, ensuring expert assistance whenever you need it.
- CONVENIENT REPLACEMENT FILTERS - Easy access to replacement filter sets: F4AK (6-Month), F9K (1-Year), F19K75 (2-Year), and F28K75 (3-Year).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005LJ8EXU |
| Best Sellers Rank | #523 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Under-Sink & Countertop Filtration |
| Brand | iSpring |
| Date First Available | September 6, 2011 |
| EU Spare Part Availability Duration | 3 Years |
| Global Trade Identification Number | 00662425038015 |
| Installation Type | Under Sink |
| Is Discontinued By Manufacturer | No |
| Item Weight | 20 pounds |
| Item model number | RCC7AK |
| Lower Temperature Rating | 40 Degrees Fahrenheit |
| Manufacturer | iSpring |
| Maximum Flow Rate | 284 Liters Per Day |
| Model Name | Reverse Osmosis System |
| Operating Pressure Range | 70 PSI |
| Package Information | Tube |
| Power Source | No Power Needed |
| Product Dimensions | 15.5"L x 16"W x 18"H |
| Special Feature | Reduce TDS |
| Supported Water TDS Level Maximum (PPM) | 98 |
| UPC | 662425038015 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** iSpring
- **Capacity:** 75 Gallons
- **Included Components:** RO System, Brushed Nickel Faucet, Storage Tank, Extra Tool Set
- **Installation Type:** Under Sink
- **Material:** Acrylonitrile Butadiene Styrene, Plastic, Polyethylene, Polypropylene, Polystyrene
- **Package Information:** Tube
- **Power Source:** No Power Needed
- **Product Dimensions:** 15.5"L x 16"W x 18"H
- **Purification Method:** Reverse Osmosis, Alkaline, Activated Carbon, Carbon block
- **Special Feature:** Reduce TDS

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/81Ius7bMHaL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: What does this mean: "For each gallon of clean water, only 2 gallons of water are wasted"? Where does the wasted water go? How is this economical?**
A: If your family drink 10 gallons of water per day. The waste water might equal to 10 flushes of your toilet.

**Q: Where do I get replacement filters and which ones do you need to change and when?**
A: Many online sources that sell RO systems. A search for the RO system itself will typically get you a list of a bunch of places that can also sell the filters. You can buy them thru Amazon in multiple versions.  Individually, 1 year pack, 2 year pack, 3 year pack. In a year some of the filters are recommended to be replaced twice, some once, etc. And the "pack" comes with the right number of filters for that period of time. Stage 1 (FP15) is a 10" sediment filter replacement recommended 3-6 months though in our house we have a pre-filter for the whole house so we don't replace this one as often. Stage 2 (FG15) activated carbon filter replacement recommended every 3-6 months. Stage 3 (FC15) CTO carbon block filter replacement recommended every 3-6 months. These three are in the 10" vertical tubes and are relatively easy to change. Stage 4 (MC1) is the RO membrane itself. Recommendations on replacing this are every two years but vary. We have a pre & post particulate monitor to help us tell when it's losing its effectiveness as this is the most expensive component to replace. Multi-year filter packs will include an RO membrane but a single year pack typically will not. Bear that in mind when looking at cost of 2 year vs. 1 year packs. Stage 5 (FT15) another carbon filter but post RO. Recommended replacement annual. Stage 6 the Alkaline filter that actually puts minerals back into the water. This is recommended to be replaced every 3-6 months. In my experience you will begin to taste when this one needs replacement. This stage is the reason I bought this particular RO system and I like the taste it gives to the water. IMHO it will diminish over time and give you some indication when it needs to be changed. If you search in Amazon under something like iSpring Filter Pack

**Q: what is the sie of the hole required (in the granite slab) for the faucet?**
A: I think there is some confusion with the answers here. I think people who are stating holes over one inch are referrring to standard size holes that are factory or site drilled., and are already there. The faucet has a larger than 1/2" excusion that should cover a larger hole. By all means if you need to drill your own hole, only make it 1/2", because that is all that is required.

**Q: is there a difference between this brand and other brands like tap water master?  why is the price gap so dramatic**
A: Since 2005, iSpring has brought the price of an average RO system down from $700 range. We bypass middlemen, sell direct online, cut advertising and live up with customers review by continuous improvements. We are doing what we want to do, that is, make clean water available and affordable to more people. We believe in long term value. So please let us know where we can improve, and write review to share your joy and experience. Thank you!iSpring Water Systems | (678) 261-7611 M-F 9-5 EST | sales@ispringfilter.com

## Customer Reviews

### ⭐⭐⭐⭐⭐ AMAZING REVERSE OSMOSIS WATER SYSTEM
*by D***N on February 6, 2026*

I’ve been very impressed with the iSpring RCC7AK reverse osmosis system. The improvement in water quality was immediate — clean, crisp, and smooth tasting. The alkaline remineralization stage is a big plus and really makes the water taste better than bottled water. Installation was straightforward, and the system has been running flawlessly. Filter replacements are easy and reasonably priced, which makes this a great long-term investment. I also want to highlight iSpring’s customer support, especially Nick, who was incredibly helpful and knowledgeable. He took the time to answer all my questions, addressed my specific needs, and made the whole process stress-free. It’s rare to get that level of support these days. Overall, this is a high-quality system from a company that truly stands behind its product. I would definitely recommend the iSpring RCC7AK to anyone looking for cleaner, better-tasting water.

### ⭐⭐⭐⭐⭐ Very good system/not so good paperwork
*by C***. on June 9, 2014*

5/9/2017 - Upgraded to 5 stars. You're supposed to change the filters once every six months. It has been three years since I have installed this system and I have not done a thing to it. I should also note we have HORRIBLE water in my area. Today, I decided to purify it and change the filters. So far, I've only removed the third-fifth stage filters so I can purify it (don't want the natural water through the system, so I left the first and second stage in). For three years of use, I cannot believe how clean the third stage and membrane cylinders were. Moreover, the water still tasted fantastic. Even if the company has not fixed their instructions (see below), the performance of this RO unit is well worth the price. ------------------------ I'm installing this system now. When I opened the different plastic parts, they were all wet! Literally water in every one. So I came on line to find out why/call the company. Turns out, they're open 9-5, EST. Would be nice if they remembered that there was a lot of people on the West Coast as well. Nevertheless, after searching around, I found this line. "Our RO systems are 100% wet tested before shipping " Great! But, what does that say about how they dry/ship the product if they're wet when they're being shipped? Or, for that matter, how do I know mold isn't growing in the lines on the faucet side of the filters? Not impressed so far, but will update again as I finish and see how things go. UPDATE: The RO system is now installed. Problem: There was a few frustrations with the installation, but only one that is the fault of the company: the instructions! They are not complete by any stretch of the imagination. If you're looking for a simple start here and end here with a functional RO system, you won't find it. What you do get, is a set of papers that show you two or three independent how-to's: how to install the water tank shut off valve; how to install a spigot; how to install the filters. There's no steps for putting the individual units together as a single RO system. They do, however have an expanded picture on the front, so if you're a visual learner, you can put it together (and really, it's not *that* difficult). Yes, there are videos on the website/youtube, but I expected at least a decent set of written instructions. More Positive note: After everything is installed and I tasted the water, it was exactly what I was hoping for. I was replacing another RO system (five stage) and had bought the six stage with the hope of reintroducing a little more taste to the water. It did that, and did it well. By that, I mean, it's almost unnoticable, and that's a good thing. There's just the hint of taste as you would expect in good water. It's not a taste that will overpower anything you use it to cook in, or anything you mix it with. We filled and emptied the tank twice before keeping the water (I tasted it on the second empty, and it was already good, but we went ahead and emptied it again just to be sure). So, thumbs up for that. ---------------- Installation tip: if you're replacing another RO system, make sure the hose sizes are the same. I didn't, and I am frustrated because I had to tear out all the connections (or by reducers). This issue has nothing to do with iSpring, it's just my own lack of checking. So, make sure you check the size of hoses you're replacing. The hoses in this system are ALL 1/4 inch. And now, I have to go replace a leaky shutoff valve . . . but that isn't iSpring's fault either since I bought it at Lowes for this project. Oh, and one last thing. Note how quickly my review was responded too by the company, and how they were NOT defensive. They explained what they did, and offered help. That alone is worth the headaches mentioned above. Updated from 3 stars to 4 stars. Bad paperwork and shipping wet plastic parts kept me from the fifth star, but don't let that influence you not to buy this RO system. It looks as though, in hindsight, it's going to be worth the money. Update #2: Great tasting water, and worth the hassle/headache. I'm still deducting a star for the bad set of written instructions, because they really are that bad, but pairing it with the pictures and the video, anyone should be able to put it together. It is definitely worth it. Update #3: Have system for almost a year, now. Had one leak when a hose cracked. Not sure whether to blame that on the company, or on my installation. Nevertheless, water is still tasting great and we've had no other problems at all with the system.

### ⭐⭐⭐⭐⭐ Get this one!
*by M***A on October 23, 2025*

This is a great system if you want water that tastes as good as high quality bottled water. We had a whole house sediment filter that removed some of the "dirt" from our city water but it still had a chlorine taste so I got a single stage filter. That was a nice addition, it removed the chlorine taste and made the water more drinkable but it still tasted "off". So I got and installed a 3 stage filter. While somewhat better than the single stage filter, the 3 stage was still lacking what we were getting delivered in 5 gallon bottles for our water cooler. I can't give it a fair description but it was still just a little off. I was hesitant to pull the trigger on this full RO system for a few reasons. 1 being cost. I thought the filter replacement would be costly and frequent. Turns out it is only about $70/yr. Which is not bad for bottled water quality water any time you want it. Our water delivery is about $30/mo so this works out to be quite a bit cheaper. I was also concerned about the size of the system. With the storage tank and the 6 filters, this isn't a "small" system that you can tuck under a sink. Unless you have a giant area under your sink this does take up quite a bit of room. But for the quality of water this system produces, I feel it is worth the sacrifice. We just need to get a little more creative with how many cleaners and dust pans we keep under the sink now. And I've also seen people set this up in their basement and then run the lines up to the sink, which could also be an answer for some with space concerns. Overall I should have just installed this unit in the first place. It would have saved me about $400 in single stage and 3 stage filter setups. This is the one to get! Also there's a guy on YouTube that goes by "The Fixit Shed" who has an excellent installation video. If you've ever done any plumbing before, set aside 2-3 hours and you can just go step by step through the video. My only advice is the tubing needs to be well seated in the housings. Push those little suckers in as far as you can or you may have some leaks when you turn everything on. Other than that, I say get this system. It will magically transform your cruddy city water into great tasting healthy water right before your eyes!

## Frequently Bought Together

- 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
- iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter Replacement Pack, Alkaline Remineralization Filters for 6-Stage RO Systems, Without RO Membrane
- iSpring ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-09*