About This Whole House Water Filtration: Replacement filter cartridge designed for whole home water filtration systems to help improve water clarity and reduce chlorine taste and odor throughout the house. Granular Activated Carbon (GAC): Carbon filtration media helps reduce chlorine taste and odor while improving overall water quality for household use. Universal 20" Filter Size: Standard 4.5 inch x 20 inch cartridge fits most whole house water filter housings that accept large-capacity replacement filters. High Capacity Performance: Designed for up to 100,000 gallons of filtration capacity depending on water conditions and household usage. 25 Micron Filtration Rating: Helps capture sediment, rust, dirt, and larger particles while maintaining strong water flow for whole house filtration systems. Overview Material : Carbon Product Dimensions : 4.5"D x 4.5"W x 20"H Item Weight : 4 Pounds External Testing Certification : NSF Product Benefits : organic