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Using quality coconut shell carbon and highly compact fabrication tech, this activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve filtration efficiency and long filter

- High capacity: 400 GPD. Premium RO membrane provides longer filter life than most RO membranes on the market.
- With its 1st-stage 3-in-1 composite Sediment and Carbon Block filter and 2nd-stage advanced RO Membrane, RO400W1 effectively removes

- Filter pack especially for iSpring 5-stage RO systems, F15-100 #RCC100P series
- 100 gpd reverse osmosis membrane, TDS rejection rate 90%-97%, tested by independent third-party to meet NSF/ANSI standard
- 2-Year Supply of replacement filter for s

- Tested by independent third-party to meet NSF/ANSI standard, replacement filters for 5-stage reverse osmosis systems
- Standard sized 10" x 2.5"
- Fits iSpring RCC7, RCC7P, and most other RO systems that use standard sized filter housings inc

- Commercial RO System with Reliable Features: CRO1000 is a true commercial-grade high output, 1,000 GPD, reverse osmosis water filtration system. Features a tankless design with high production of on-demand clean filtered water. Working water pressu

- 2-year supply of replacement filters for iSpring 400GPD Commercial Tank less RO system
- Individually wrapped, fresh from factory
- 2 of UPGRADED 300GPD Commercial membranes included
Using quality coconut shell carbon and highly compact fabrication tech, this activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve filtration efficiency and long filter life for 10" Whole House and Undersink Water Filtration Systems. Free of surfactants, binders, and adhesives. No leaching carbon ash.
Knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is effective on herbicides and industrial solvents and other contaminants like trihalomethanes. Steady flow and high absorption.
Each cartridge filters up to 50,000 gallons depending on the use and feed water quality. Replace the filter every 6 months or every 50,000 gallons of water for ideal performance, depending on the quality of source water and daily water consumption.
Fits standard 10"x4.5" filters. Official 2nd stage Carbon Block replacement filter cartridge for iSpring under sink water filter US21B and whole house water filtration system WGB21B; 1st stage for WGB21BM and WGB21B-PB. All 4 cartridges are individually sealed for freshness.
Your iSpring shopping experience is backed by a 30-day money-back guarantee, extended warranty upon registration, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.