iSpring RCC1P Water Filtration System
- Capacity: 100 gallons
- Purification: Reverse Osmosis
- Install Type: Under-Sink
- Material: RE
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A capable under-sink RO system for households wanting deeper filtration than a pitcher or faucet filter provides, provided there is room and plumbing access below the sink.
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ASIN: B00PEDWH4KModel: RCC1PCategory: Water Filtration Systems
Overview
An under-sink reverse osmosis filtration system rated for up to 100 gallons of output, built around iSpring's RE membrane material, sized 19 x 8 x 14.5 in and weighing 33.5 lb.
Reverse osmosis systems like this sit under the kitchen sink and tie into a dedicated faucet, pushing water through a semipermeable membrane to strip out dissolved solids. iSpring lists a 100 gallon capacity rating, which typically refers to membrane output before a filter change is needed rather than a single-use limit. The listing does not break out stage count or specific contaminants removed, so buyers wanting detailed contaminant claims should check iSpring's product documentation.
- Reverse osmosis purification
- 100 gallon rated capacity
- Under-sink installation
- 19 x 8 x 14.5 in footprint
Who it's for
Homeowners with under-sink space who want reverse osmosis filtration rather than a basic carbon filter. Less suited to renters or anyone unwilling to drill a faucet hole for a dedicated RO tap.
Pros and cons
- Reverse osmosis filtration, not just carbon
- Rated to 100 gallons of output
- Under-sink install keeps it out of sight
- Requires under-sink plumbing space and a drilled faucet hole
- No stage count or contaminant list given
- At 33.5 lb it is heavier to install than a simple filter
Performance notes
Reverse osmosis forces tap water through a membrane under pressure, which is the step that removes dissolved minerals and many contaminants that carbon filtration alone leaves behind. The 100 gallon capacity figure marks how much filtered water the system is rated to produce before service is due.
Specifications
| Brand | iSpring |
|---|---|
| Model | RCC1P |
| Dimensions & fit | |
| Weight | 33.5 poundshigher than 98% of 41 water filtration systems |
| Dimensions | 19 × 8 × 14.5 inches |
| Dimensions | 19 x 8 x 14.5 in |
| Capacity & performance | |
| Capacity | 100 gallonshigher than 67% of 46 water filtration systems |
| Construction & materials | |
| Material | RE |
| Compatibility & installation | |
| Install Type | Under-Sink |
| Other details | |
| Purification | Reverse Osmosis |
Closest rivals on specs
Apec Water ROES-100 Water Filtration System- Weight 33.5 vs 26 pounds (+29%)
Bluevua RO100ROPOT Countertop Reverse Osmosis System- Capacity 100 vs 0.4 gallons (+24900%)
- Weight 33.5 vs 23.2 pounds (+44%)
Waterdrop WD-A2G Water Filtration System- Capacity 100 vs 1.2 gallons (+8233%)
- Weight 33.5 vs 22 pounds (+52%)
Frequently asked questions
What type of filtration does the iSpring RCC1P use?
It uses reverse osmosis, which pushes water through a membrane to remove dissolved solids beyond what carbon filtration alone catches.
How is the iSpring RCC1P installed?
It is an under-sink system, installed in the cabinet below the kitchen sink with a dedicated faucet.
How much water is the system rated to filter?
The listing rates it for up to 100 gallons of output.