Centrifugal Pump Head, HP Required 5 hp, Inlet (In.) 1 1/2 in, Wetted Materials 304 SS, Cast Iron SUS316,Carbon, Ceramic, Viton, Impeller Material 316 SS, Housing Material Cast Iron, Seal Material Carbon, Ceramic, Stainless Steel, Viton, GPM of Water @ 5 Ft. of Head 105, GPM of Water @ 10 Ft. of Head 104, GPM of Water @ 15 Ft. of Head 102, GPM of Water @ 20 Ft. of Head 101, GPM of Water @ 30 Ft. of Head 96, GPM of Water @ 40 Ft. of Head 93, GPM of Water @ 50 Ft. of Head 88