The KDF 55 TM/Granular Activated Carbon 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. 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: Sediment Chlorine Lead Mercury Arsenic Copper Scale Lime VOCs THMs and much more! Specifications: Micron Rating: 10 Nominal Dimensions: 20" x 4.5" Total Weight: 10 lbs 6 oz Operation Temperature: 40F to 100F Max. Recommended Flow Rate: 4 GPM Filter Media: KDF-55 TM Granular Activated Carbon Filter Life: 60,000 Gallons Intelifil Model #: IF-SM-KDF020B