Hand Operated Drum Pump Action Type Piston Pump Body Material Polypropylene Wetted Materials Polypropylene Tygon 2375 Seal Material Polyethylene Gasket Material Viton Discharge Tubing Material Tygon 2375 Hose Material Tygon 2075 Piston Material Polypropylene For Use On 5 gal Pail 5 to 55 gal Drums Rieke Flex Spout Containers GPM 4 Maximum Head 6 ft. Max Pressure 7 psi Max Temp 120 Degrees F Max Viscosity 1400 SSU Max GPM for Oil 1 Max GPM for Water 4