1/4 Inch Automotive Steel Coupler Plug x 3/8 Inch Easy-Lock Barb, PK 6 These plugs are interchangeable with the automotive (Tru-flate) standard series plugs produced by other manufacturers..
.1/4 Inch Automotive Coupler and Plug (CPA441 & CA440) These couplers and plugs are interchangeable with the automotive (Tru-flate) standard series plugs and couplers produced by other manufacturers. Maximum operating pressure 300 PSI.