Details:
Type: Threaded fitting in filter cap. Screw-In
Diameter:Measured across end cap at widest point.4⅝"
Length:Measured end cap to end cap, excluding any handles, threads, fittings or protrusions. 8"
Top: Handle
Thread:Measured outside diameter. Also called 1½" MPT. 1⅞" Fine
Media:Media area & weight/yard.18 SF-3oz
Cross reference numbers: Unicel: 4CH-21, Pleatco: PTL18P4-4, Filbur: FC-0121, Other: R173372, XLS437, 11901, 20245-238, 40191
Associated brands: Atera, California Cooperage, Champion, Galaxy, Saratoga Spas, Vita