iSpring RCC1UP 6-Stage 100 GPD Reverse Osmosis System with Booster Pump and UV

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Product guide

iSpring RCC1UP 6-Stage 100 GPD Reverse Osmosis System with Booster Pump and UV

The iSpring RCC1UP is an under-sink reverse osmosis system combining a booster pump with an 11W UV stage. Its stated 100 GPD capacity and pump are aimed at homes seeking RO filtration, including where water pressure is low, while the UV stage requires an electrical outlet.

At a glance

The manufacturer describes a six-stage setup with sediment and carbon prefilters, an RO membrane, final carbon polishing and UV treatment.
The booster pump is promoted for low-pressure homes, with the manufacturer identifying pressure below 40 PSI as a suitable use case.
The listing claims DIY installation with push-to-connect fittings and color-coordinated tubing. It also says installation parts are included.

Price

$356.49Save 15%

Reference price: ~~$419.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The built-in booster pump and UV stage address buyers looking for pressure assistance and an additional treatment stage in one under-sink system.
The manufacturer provides replacement filter identifiers, which can help buyers plan ongoing filter changes.

Cons

The UV stage requires an electrical outlet beneath or near the sink.
The stated dimensions and under-sink format require dedicated cabinet space and a suitable installation location.

Technical specifications

15 specifications

Identity and filtration
Brand	iSpring
Model	Reverse Osmosis System
Stages and rated capacity	6-Stage 100 GPD
Purification methods	Reverse Osmosis, Ultraviolet
RO membrane filtration rating	0.0001 micron
UV stage	11W ultraviolet UV Filter

Dimensions and installation
Installation type	Under Sink
Dimensions listed	14.5"L x 5.25"W x 19"H
Weight listed	35 pounds
Electrical requirement	REQUIRES an electrical outlet

Water specifications
Capacity field	100 gallons
Maximum supported TDS listed	750

Materials and features
Material listed	Brass
Special feature	Chlorine Reduction
UV power-on behavior	11W ultraviolet UV Filter powers on and off with water flow automatically

What to know before buying

Plan for regular filter replacement. The manufacturer names F7-GAC, F15-100 and F22-100 as replacement filter searches.

Listing details to confirm

The listing contains inconsistent and unconfirmed technical details: it gives a maximum supported TDS of 750, but elsewhere states Max TDS: 2000 ppm. It also describes 100 GPD capacity while specifying 100 gallons in the capacity field, and says the UV filter operates automatically with water flow while separately describing a smart flow switch as available for most systems. Confirm the applicable values and included flow-control configuration for the selected listing before purchase. The stated 100 GPD rating is conditioned elsewhere on 50/60 psi and 77 deg F.

What’s in the box

Included

Reverse osmosis system

Who is it for?

A good fit for

Households wanting an under-sink RO system with both a booster pump and UV stage.
Buyers with low incoming water pressure who want a system the manufacturer identifies as suitable below 40 PSI.
DIY installers comfortable making room for the system and providing an electrical outlet for UV operation.

Less suited to

Buyers who cannot provide an electrical outlet for the UV stage.
Installations without enough under-sink space for the listed dimensions.

iSpring RCC1UP 6-Stage 100 GPD Reverse Osmosis System with Booster Pump and UV · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 109 ratings

5 stars71%71%
4 stars16%16%
3 stars6%6%
2 stars4%4%
1 star3%3%

Customer feedback highlights perceived water quality and taste, along with reports of straightforward installation, clear-enough instructions and solid build quality. Some customers also describe the system as good value and mention a leak-detecting mechanical water-supply shutoff. These reports may matter to buyers planning a DIY under-sink installation, but they do not confirm filtration performance or guarantee a leak-free setup. Ratings are mostly five-star, with a smaller range of lower ratings, so experiences are not uniform.

Positive themes

Customers report good water quality and taste.
Customers describe installation as straightforward and the instructions as reasonably clear.
Feedback mentions build quality and a leak-detecting mechanical water-supply shutoff.

Frequently asked questions

Does the RCC1UP need electricity?

Yes. The listing says the UV stage requires an electrical outlet. It describes the UV light as switching on and off with water flow.

Is this system intended for low water pressure?

The manufacturer describes the booster pump as suitable for homes with pressure below 40 PSI. The listing also provides other feed-pressure figures, so confirm the operating range for the version being purchased.

How much cabinet space does it need?

The listed dimensions are 14.5"L x 5.25"W x 19"H. Check the cabinet layout and plumbing clearance before installation.

What is the system's maximum TDS rating?

The details list 750, while the product description states Max TDS: 2000 ppm. These claims conflict, so verify the applicable limit with the selected listing or manufacturer.