KleenWater Activated Carbon Block Water Filters, 4.5 x 20 Inch Brand Replacement Cartridges (2) Two KleenWater brand whole house carbon filters. Removes/reduces chlorine, sulfur, odors, rotten egg smell, pesticides, chloramines and other contaminants Provides "bottled quality" water for the entire home Radial flow provides extended useful life 4.5 x 20 inch "Industry Common" dimension