The Intelifil KDF 55 TM Cartridges have superior taste and odor removal capabilities. The copper granular KDF in this cartridge specializes in the removal of inorganics, heave metals and chlorine. This leaves the black granular coconut shell activated carbon free to do what it does best, removing organic matter. These filters last at least 5x more than standard carbon block filters. KDF media controls scale, bacteria and algae, even in hot water. KDF media causes cellular damage to microbiological organisms which can kill or inhibit any growth. These types of filters are perfect for either drinking water units or whole house filters. For more information on KDF media, please click here or go to www.KDFFT.com Removes/Reduces: Chlorine Lead Mercury Arsenic Copper Scale Lime VOCs THMs and much more! Specifications: Micron Rating: 10 Nominal Dimensions: 9.75" x 2.75" Weight: 5 lb of KDF media Operation Temperature: 40°F to 100°F Max. Recommended Flow Rate: 1 GPM Filter Life: 60,000 Gallons