Pentek FloPlus-10BB Carbon Block Filter Cartridge, 9-3/4" x 4-5/8", 0.5 Micron Reduces fine sediment, chlorine taste and odor, and protozoan cysts in high-flow residential and commercial drinking water applications Nominal filtration rating of 0.5 micron Modified bonded PAC media combines efficient cyst reduction with the high flow rate of a 10-micron filter Initial pressure drop of 4 psi at a flow rate of 2 gpm Temperature range of 40 to 180 degrees F (4.4 to 82.2 degrees C)