Typical Sound Level at 4.9 Bar (70 Psi). 1/2 graco husky 515 / at15/va15 air diaphragm pump (pvdf/kynar/ptfe) d5ea11 2.5 mm (3/32 inch). We also supply all other spare parts for all types of'Air Driven Double Diaphragm Pumps'. Maximum Dry Suction Lift Water. This is a brand New ½ Graco Husky Air Driven Double Diaphragm Pump.