5-stage RO

iSpring RCC7: Certified RO

NSF/ANSI 58 certified and built as five stages, the iSpring RCC7 reduces up to 99% of over 1,000 contaminants — chlorine, fluoride, lead and PFAS — for clean-tasting water at the tap.
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iSpring RCC7 five-stage reverse osmosis system with filter housings, storage tank and brushed nickel faucet on a kitchen counter

Five stages built for everyday reliability

Certified construction and sensible design choices carry the system through years of daily use: an NSF/ANSI 58 rated reverse osmosis process, 75 gallons per day capacity, and a brushed nickel faucet that finishes neatly at the sink.

Certified to NSF/ANSI 58

The system is certified to NSF/ANSI 58, the standard covering reverse osmosis drinking water treatment units, so its contaminant reduction performance is verified independently rather than taken on trust.

75 gallons per day capacity

A 75 GPD rating keeps the storage tank supplied for typical household drinking and cooking, so a busy morning rarely finds the faucet running slow while the next batch of water filters through.

Brushed nickel faucet finishes neatly

The included brushed nickel faucet mounts at the sink and keeps the installation looking clean. Tubing routes under the counter, leaving the countertop clear except for one slim, easy-to-reach handle.

Product overview of the iSpring RCC7 five-stage reverse osmosis system with manifold, filter housings and tank
A glass of clear filtered water on a kitchen counter beside a brushed nickel faucet, with the under-sink system partly visible below
Everyday water wins

What cleaner water changes at home

Close-up of clear filtered water pouring from a brushed nickel faucet into a clear glass

Better-tasting water from the tap

Reverse osmosis removes chlorine and the taste and odor compounds behind it, so drinking and cooking water taste clean without a pitcher in the fridge or bottled cases.

Two clear glasses of water and spot-free ice on a kitchen counter in daylight

Confidence about what gets removed

The system targets contaminants including PFAS, chlorine, fluoride and lead, reducing up to 99% of over 1,000 substances — real peace of mind if your water source changes.

Under-sink reverse osmosis storage tank and filter housings neatly installed in a cabinet

Low upkeep that fits real routines

A leak-free design and straightforward filter changes keep upkeep simple, so busy households keep clean water flowing without constant attention or surprise service calls.

Kitchen sink with the RCC7 brushed nickel faucet filling a glass and the system partly visible in the open cabinet below

Where the RCC7 fits daily water use

Homes on city water, well water or a changing municipal source, households that cook and drink straight from the tap, and anyone wanting point-of-use filtration without whole-house plumbing changes will find the RCC7 a practical fit.

City water households seeking cleaner taste

If your municipal supply carries chlorine taste and odor, the RCC7’s carbon and reverse osmosis stages reduce those compounds at the single tap you drink from, improving flavor without touching the rest of the plumbing.

Well water homes wanting verified reduction

Well sources vary season to season. Certified reduction across chlorine, fluoride, lead and PFAS gives households a consistent baseline, though periodic lab testing of your own well water remains a sensible companion step.

Small kitchens and compact under-sink cabinets

At 15.5 by 5.1 by 18.0 inches plus the tank, the system suits tighter cabinets where a larger unit will not sit. Plan the faucet hole and drain saddle first, and every connection still stays reachable for filter changes.

Install and maintain it yourself

iSpring RCC7 components, tubing and simple tools laid out during an under-sink installation
Measuring tape and under-sink cabinet space prepared for the iSpring RCC7 system

Plan the space before you start

Check that your cabinet clears 15.5 by 5.1 by 18.0 inches plus the tank, then plan the faucet hole and drain saddle so every connection has room and stays reachable for filter changes.

Five-stage manifold mounted inside a cabinet with tubing routed to a brushed nickel faucet

Mount the manifold and faucet

Fasten the manifold to the cabinet wall, connect the cold supply and drain saddle, then mount the brushed nickel faucet at the sink so the tubing runs without kinks or tension.

Hands wearing no gloves twisting a filter housing during a routine filter change under the sink

Flush filters and set a schedule

Flush the system before first use, then set a simple calendar reminder for filter changes. Owners describe this routine as easy and inexpensive, which keeps performance consistent.

Owners reporting in

What daily use looks like over years

I have used this system every day since 2018 and it works brilliantly and is very easy to maintain. After all these years, support came up with a solution right away. They have the best system and the best customer support. I highly recommend this product and company!
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Daniel R.
Ten-plus years of daily use with fast support response
We have been using our iSpring under-sink filter system for a week now and love it! We could not be happier having clean water to drink and cook with. The difference in taste was noticeable right away, and the system fit neatly under our sink without any fuss.
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Maria T.
Clean drinking and cooking water within the first week
Just a heads up — I received the package today, you go too far, man! So awesome, thank you for everything. You guys rock! I will be highly recommending your systems to anyone. I have two systems, one for my daughter, and I am working on getting systems for my other kids' homes.
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J. Whitfield
Repeat buyer recommending the system to family
I have an iSpring RCC7 5-stage water filter system which I bought in 2018; it is still going strong. With regular filter changes and other routine maintenance, you get very good tasting water. The replacement filters are also relatively cost effective.
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Ken B.
Long-term owner praising affordable replacement filters
I would never own a home without this system. I bought it about 10 years ago when our city began using lake water as their source. The system performed flawlessly, dramatically improving the taste and purity of tap water. Installation was simple and maintenance is easy too.
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Susan L.
A decade of reliable performance on city lake water

Questions before you buy

Straight answers on certification, fit, installation and upkeep, so you can compare the RCC7 against other under-sink reverse osmosis options before you commit.
The 5-stage system is designed to reduce up to 99% of over 1,000 contaminants, including chlorine, fluoride, lead and PFAS, improving taste and odor along the way.
Owners report a straightforward under-sink install. Check local codes for the faucet hole and drain saddle, and shut off the cold supply line before you begin.
The unit measures 15.5 inches long, 5.1 inches wide and 18.0 inches high. Measure your cabinet first, since the storage tank and tubing also need room to sit neatly.
It is certified to NSF/ANSI 58, the standard for reverse osmosis drinking water treatment units, so its contaminant reduction performance is independently verified.
Filter changes are the main cost. Owners describe the routine as simple, and replacement filters stay relatively cost effective across years of daily use.
An iSpring RCC7 system with filter housings, tank and manual laid out on a counter during planning

Learn more before you choose your system

Continue into our library of water filtration articles to learn how reverse osmosis compares with whole-house filtration, when a softener is the better fit, and which filter changes keep a system like this performing for years.
Under-sink reverse osmosis water filtration system with stacked filter housings and blue tubing beside a faucet pouring clear water into a glass

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Modern kitchen scene with clear drinking water poured into a glass beside an undersink reverse osmosis unit and a whole-house filter housing

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