Description The key to a long lasting air compressor is regular maintenance. Each time your compressor runs, the moisture in the air condenses in the tank. This moisture must be drained daily from the tank to prevent water buildup. To make this daily maintenance task easy to perform, install the Husky Extended Tank Drain Valve Assembly.Works on air compressors with 1/4 in. NPT drain valveReplaces current drain valve for ease in draining moisture from the compressor tankIncludes a 1/4 in. elbow with pre-applied thread sealant, 10 in. flexible braided steel hose and 1/4 in. quarter turn drain valveEasily drain your tank after every useFits 1/4 in. NPT ports