Brass quick connect blow out plug.
Aids in removal of water from water lines to eliminate dilution of antifreeze when winterizing. This plug attaches to the city water inlet, and an air compressor chuck hooks up the the quick connect.
Tip : If your air compressor does not have an adjustable pressure setting, use your water pressure regulator to keep the PSI at 40 as not to damage your plastic plumbing.
Part number 5336143