Product details:

This air operated barrel pump fits drums with 1-1/2 in. or 2 in. openings and will transfer approximately 12 gallons per minute of oil and other non-corrosive fluids. The 40 in. long x 1-1/4 in. suction tube provides ample reach into the barrel. The pump has a 10 PSI maximum working pressure and safety air valve. Fits drums with 1-1/2 in. or 2 in. bung Built-in 0-22 PSI pressure gauge and regulator Safety air valveFits drums with 1-1/2 in. or 2 in. bung
Built-in 0-22 PSI pressure gauge and regulator
Safety air valve