KleenWater Pentek CBC-20BB Compatible Water Filters, 4.5 x 20 Inch Carbon Block Replacement Cartridges (2) with Genuine Can Holders (2) Two Pentek CBC-20BB compatible KleenWater brand whole house carbon filters. Two genuine KleenWater insulated can holders Provides "bottled quality" water for the entire home Removes/reduces chlorine, sulfur, odors, rotten egg smell, pesticides, chloramines and other contaminants 4.5 x 20 inch "Industry Common" dimension