Detailed Product Description Detailed Product Description Photo1:Coupler with aluminum socketSize:1/4",3/8",1/2"Photo ... type air quick couplingEurope Type Quick Coupler Shape:SH.SM.SP.SM.PH.PM.PF.PP(Female,male,hose barb,plug)Material ... ,Equipment,Air piping,water. Photo 3:Air quick couplerDifferent air coupler can choiceDifferent size can supply Photo 4: tire gaugeDifferent tire ...