The Vevor whole house water filter replacement cartridge is designed to help reduce heavy metals, chlorine, taste, and odor throughout your home's water supply. It uses granular coconut shell carbon and copper-zinc alloy filtration media for improved water purity and better-tasting water. The standard 4.5" x 20" size fits most compatible whole house filter housings for easy replacement. With a capacity of up to 100,000 gallons and an expected service life of up to 12 months depending on water quality, it offers long-lasting filtration performance.