pressurize the tank with an air connection after closing the appropriate valves and then drain will evacuate into your waste oil tank

1/4" Pipe 45°  - 688

these reels provide simple maintenance via an easy access swivel

Outside Columns 151

35 CFM Max Air Flow

Milton 614-4BK 1/4" Compressor Tank Drain Cock (Box of 50) Dual Head pressurize the tank with an1 4" Compressor Tank Drain Cock (Box of 50) 1 4" national pipe thread Replacement part for compressor tanks Brass body, steel handle 1 4" NPT drain cocks are a replacement part for damaged drain cocks on compressor tanks. Turn handle to drain water, close drain cock when water is drained. Always release air from tanks before replacing drain cock. Drain cock body is brass, handle is steel.