Max Water 20-Inch Heavy Metal Water Filter Cartridge - KDF 55 & GAC Carbon Filter (20" x 4.5") - Compatible with 20" Standard Housings & Big Blue Systems - Removes Lead, Chlorine, Mercury - Ideal for Whole House Filtration & Drinking Water Purification

Size 20 inch x 4.5 inch Fits most standard 20 inch size housings and most Whole House BB systems.RO, DI and IX systems benefit from the use of KDF Media because our Media allow these systems to tend to their strengths. Our Media protect RO systems, extending the life of the systems’ membranes. KDF Media protects expensive IX systems. Longer life and reduced maintenance, all combine for lower costs. 5 Micron Nominal filter membrane included.Operation Temperature: 40°F to 125°FOperation pressure 25 to 75 PSI maximum.Coconut Shell Activated Carbon KDF 55 MediaDimensions: 20" x 4.5"