1 x1/4" NPT Drain Lock

This is a brass drain lock, it is used in air tanks to obviously drain them of any water that may collect.

Simply screw it in to the lowest point of your tank, When compressor is turned off, At the end of the lock you unscrew the fitting, and this allows anything (Air or Liquid) to drain from the tank, When finished simply screw it back in and turn your compressor back on and your finished.

Ideally this should be done each time your service yourvehicle, so its easy to remember when you did it last.

.