"This Sandpiper double diaphragm pump features an externally serviceable air distribution system and all-bolted construction. Self-priming pumps can run dry without damage and are capable of deadheading against a closed discharge, eliminating the need for bypass or pressure relief valves. Seal-less design and corrosion-resistant materials make the pumps ideal for solids handling and high-suction lift applications such as transferring antifreeze, ATF, light viscosity petroleum and synthetic-based oil and waste oils. NOTE Use inline filter regulator Item# 156440 or 1594016 with 1/2in. air inlet. Max. PSI 100, Average Air Consumption CFM 48, Air Inlet Size in. NPT 1/2, Dimensions L x W x H in. 7 x 10 x 13, Inlet Port in. 1, Flow GPM 45, Outlet Port in. 1, Max. Suspended Solids in. 1/4. Units designed for fuels and flammable solvents include ground capability to eliminate static discharge Whetted parts material Aluminum/Buna Rated for service of typical fluids Oil and automatic transmission fluid, petroleum-based oil products Use inline filter regulator Item# 156440 or 1594016 with 1/2in. air inlet"