. Precision machined from solid steel bar stock which provides longevity during mechanical shock in rugged applications.3/8 Inch Auto Steel Coupler x 3/8 Inch Barb (Silver Color), PK 50 Maximum working pressure 300 PSI. These couplers are interchangeable with the Automotive (True-Flate) Standard series couplers produced by other manufacturers.
. Maximum operating pressure 300 PSI.1/4 Inch Industrial Steel Coupler Plug x 3/8 Inch Easy-Lock, PK 25 These plugs are interchangeable with the industrial (Hansen or Milton type) standard series plugs produced by other manufacturers.