iSpring FC25B Whole House Water Filter Replacement Cartridge – CTO Carbon Block, 20" x 4.5"

The iSpring FC25B is a high-capacity whole-house water filter replacement cartridge designed to improve water quality throughout your home. This 20" x 4.5" CTO carbon block filter is made with high-quality coconut shell activated carbon to help reduce chlorine, unpleasant taste and odor, cloudiness, and certain chemicals from water.

Its standard 20" x 4.5" size fits filter housings designed for this cartridge size, including compatible brand-name housings. The filter is designed to maintain good water flow with minimal impact on pressure and can support flow rates of up to 15 GPM.

Compatible Systems

• Standard 20" x 4.5" filter housings
• Whole-house water filtration systems
• Compatible brand-name filter housings

Key Features

• CTO carbon block filtration
• Up to 99% chlorine reduction
• Up to 15 GPM flow rate
• Coconut shell activated carbon
• NSF/ANSI tested

Specifications