This compressor tank drain is electronically adjustable to drain compressor tank automatically in order for it to deliver dry air. The two 2 way direct acting 1/4" FNPT valves are made of forged brass and have a manual test switch. Mountable in any position, this tank drain has a 6' 1/2" power cord and offers voltage of 115 volts / 1 phase / 60 Hz. Offers a working pressure range of 0 to 230 PSI.