The Black Diamond Extended Tank Drain Valve Assembly makes routine air compressor maintenance faster and easier, helping extend the life of your equipment by simplifying daily moisture removal. Each time a compressor runs, moisture condenses inside the tank and must be drained to prevent corrosion and water buildup. This assembly replaces the factory drain valve with an easy to reach extension that allows the tank to be drained after every use. Designed for compressors with a 1/4 in. NPT drain valve, it features pre applied thread sealant for leak free operation and includes a 1/4 in. elbow, 10 inch flexible braided steel hose, and a 1/4 in. quarter turn drain valve.