PT Coupling Basic Standard Series 15W ALUM, 1-1/2&nbsp;Inch Aluminum Dust Plug Adpater item# 1001215 Plug provides leak-tight termination of cam-locking female coupler Male and female cam and groove connection Aluminum body for corrosion and abrasion resistance and light weight For use with water, hydraulic oil, coolants, gasoline, and petroleum products Complies with Commercial Item Description A-A-59326D for quick disconnect fittings