Action pump air operated def pump – 3007-adef air operated def pump easy operation comes with a 2″ bung adapter use with def (diesel exhaust fluid), light oils, gear lube, hydraulic oil up to 8 gpm. Supplied with telescoping suction pipe to fit 55 gallon drum. Pump has 2″ male nps thread connection to drum. 30-100 psi, low noise 74db.