This simple-to-use optional cartridge reduces chemicals and bad taste from water.Replaceable activated-carbon cartridge removes chemicals such as chlorine, leaving water tasting fresh and clean- May be used with all brands of water systems- Attaches to 0.25-inch inlet and outlet hoses- Treats up to 60 gallons- Package of twoSpecifications:- Weight: 3 ounces- Filter medium: Activated charcoal- Dimensions: 3.5 x 2.5 x 2.5 inches