"This Sandpiper Air-Operated double diaphragm pump features an externally serviceable air distribution system and all-bolted construction. The self-priming pump design can run dry without damage and can deadhead against a closed discharge, eliminating need for bypass or pressure relief valves. Seal-less design and corrosion-resistant materials make pump ideal for solids handling and high suction applications. 15 GPM pump with 1/2in. inlet and outlet ports. Ideal for transferring antifreeze, ATF, light viscosity petroleum and synthetic based oil. 100 PSI max. operating pressure includes ground capability to eliminate static discharge. U.S.A. Operating PSI 100, Max. PSI 100, Outlet Port in. 1/2, Max. Fluid Temp. F 150, Inlet Port in. 1/2, Average Air Consumption CFM 15, Air Inlet Size in. NPT 1/4, Dimensions L x W x H in. 7 x 10 x 12, Max. Suspended Solids in. 1/8, Flow GPM 15. Santoprene fittings Specific applications include sanitizing chemicals, fertilizers, moderate caustics and acids"