Pentek 158110 3/8" #5 Slim Line Clear Filter Housing Slim filter housing for low-flow applications with space restrictions Clear styrene-acrylonitrile (SAN) for on-site viewing of flow and cartridge condition Use with a 5" x 2-1/2" sediment or carbon filter cartridge (sold separately) Initial pressure drop of 2 psi at a flow rate of 5 gpm Maximum temperature of 125 degrees F (51.7 degrees C)