PENTEK™ filter cartridges are designed to fit all standard brand filter housings, PENTEK™ cartridges are made with only Premium filtration media. This Water Washed Coconut Shell carbon (GAC) cartridge reduces harmful volatile contaminates, Chlorine, taste, odor and sediment. Filters up to 7,500 Gallons with a flow rate of 1 Gallons Per Minute.