Hand Operated Drum Pump, Piston Action, Pump Body Material Chrome Steel, Wetted Materials Chrome Steel, Polyethylene, Neoprene, GPM 2, Maximum Head 3 Ft, Max. Pressure 20 psi, Max. Temp. 140 F, Max. Viscosity 650 CPS, Inlet Size 1/2 In, Outlet Size 1/2 In