Rotary Vane Pumps with Manual Nozzle, 20 gpm, Rotary Vane Amp no checkout non corrosive liquids Curved metal spout features non corrosive liquids Curved metal spout features threads to fit all garden hoses Full jacket collar Adjustable black snaps on cuffs provide additional flashback protection Made from 100% flame retardant (FR) cotton sateen fabric Their rugged motors are explosion proof and rain proof to ensure a long life of dependability Heavy duty cast iron construction Carbon vanes and ceramic carbon seals reduce wear and repair expense Integral check valve with pressure relief on outlet side reduces pressure drop and improves vertical lift Self priming