iSpring FC15B High Capacity Activated CTO Carbon Block Filter for Under Sink and Whole House Water Filtration System, 5-Micron 10"x4.5"
iSpring FC15B High Capacity Activated CTO Carbon Block Filter for Under Sink and Whole House Water Filtration System, 5-Micron 10"x4.5"
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30-Day Hassle-Free Returns
30-Day Hassle-Free Returns
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About This
- [Premium Quality Material] Using high-quality coconut shell carbon and highly compact fabrication tech, this highly activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve maximum filtration efficiency and filter life for 10" Under Sink Water Filter and Whole House Water Filtration Systems. Free of surfactants, binders, and adhesives. No leaching carbon ash
- [Exceptional Filtration Performance] Knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides, and industrial solvents and other contaminants like trihalomethanes. Steady flow and high absorption
- [Long Filter Life] 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 optimal performance. Usually used as the second stage filter for whole house water filtration systems, FC15B brings clean and refreshing water to every faucet in your home
- [Great Compatibility] Official replacement filter for iSpring Under Sink Water Filter System US21B and Whole House water filtration systems(WGB21B, WGB21BM, and WGB21B-PB). Fits other standard 10" x 4.5" undersink and whole house water filtration systems. Individually sealed for freshness
- [Peace-of-mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back guarantee and lifetime tech support from iSpring in Alpharetta, GA
Overview
- Brand : iSpring
- Special Feature : UV Light Disinfection
- Material : Carbon Block
- Capacity : 50000 Gallons
- Included Components : 1 FC15B CTO Filter
- Installation Type : Under Sink
- Purification Method : Activated Carbon, Carbon Block
- Power Source : Electric Power
- Item Weight : 2.7 Pounds
- Model Name : FC15B High Capacity Activated CTO Carbon Block Water Filter

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide