Pentek CC-10 Coconut Carbon Filter Cartridge, 9-3/4" x 2-7/8", 20 Micron Reduces chlorine taste and odor, MTBE, VOCs, and sediment in residential and commercial drinking water Nominal filtration rating of 20 microns Granular activated carbon (GAC) media with polystyrene outer casing and end caps Initial pressure drop of 4.5 psi at a flow rate of 1 gpm Temperature range of 40 to 125 degrees F (4.4 to 51.7 degrees C)