Timed Electric Auto Drain Valve, Pipe Size 1/2 in NPT, Drain Size 3/8 in, Drain Rate 16.5 gpm, Adjustable Drain Cycle 0.5 sec to 45 min, Purge Time 0.5 sec to 10 sec, Voltage 100-120V, Max. Pressure 300 psi, Operating Temp. Range 14 Degrees to 140...