iSpring RCC1UP Water Filtration System
- Capacity: 100 gallons
- Purification: Reverse Osmosis
- Install Type: Under-Sink
- Material: Brass
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A full under sink RO system with brass construction and a 100 gallon per day membrane rating, worth it if you want whole tap RO rather than a drop in cartridge.
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ASIN: B00LZWPH4QModel: RCC1UPCategory: Water Filtration Systems
Overview
The iSpring RCC1UP is a complete under sink reverse osmosis system rated for 100 gallons a day, built with brass housing and fittings, measuring about 14.5 x 5.25 x 19 inches and weighing 35 lb.
Reverse osmosis systems push tap water through a semipermeable membrane to strip out dissolved solids, and iSpring uses brass rather than plastic on key connections here, which matters for long term seal durability under a cabinet.
- ISpring RCC1UP reverse osmosis system
- Brass housing and fittings
- Rated 100 gallons per day
- 14.5 x 5.25 x 19 in, 35 lb
Who it's for
Fits a household that wants a dedicated under sink RO system rather than a single inline cartridge, with the cabinet space and plumbing access a 19 inch tall unit requires. Not for renters or anyone wanting a countertop or faucet mount filter.
Pros and cons
- Brass construction on housing and fittings
- Rated for 100 gallons per day
- Relatively compact under sink footprint
- No performance data from buyers is available
- Requires under sink plumbing access to install
- 35 lb unit needs a stable mounting spot
Performance notes
RO capacity ratings are typically measured at ideal pressure and temperature, so actual daily output can run below the 100 gallon figure depending on your home's water pressure and dissolved solids level.
Specifications
| Brand | iSpring |
|---|---|
| Model | RCC1UP |
| Dimensions & fit | |
| Weight | 35 poundshigher than 100% of 41 water filtration systems |
| Dimensions | 14.5 × 5.2 × 19 inches |
| Dimensions | 14.5 x 5.25 x 19 in |
| Capacity & performance | |
| Capacity | 100 gallonshigher than 67% of 46 water filtration systems |
| Construction & materials | |
| Material | Brass |
| Compatibility & installation | |
| Install Type | Under-Sink |
| Other details | |
| Purification | Reverse Osmosis |
Closest rivals on specs
Apec Water ROES-100 Water Filtration System- Weight 35 vs 26 pounds (+35%)
Bluevua RO100ROPOT Countertop Reverse Osmosis System- Capacity 100 vs 0.4 gallons (+24900%)
- Weight 35 vs 23.2 pounds (+51%)
Waterdrop WD-A2G Water Filtration System- Capacity 100 vs 1.2 gallons (+8233%)
- Weight 35 vs 22 pounds (+59%)
Frequently asked questions
Is the iSpring RCC1UP a full RO system or just a filter?
It's a complete under sink reverse osmosis system, not a single replacement cartridge.
What is the RCC1UP made of?
Its housing and fittings are brass rather than plastic, per the listed specs.
How much space does it need under the sink?
About 14.5 x 5.25 x 19 inches and 35 lb, so it needs a stable spot with plumbing access.