quick coupling SU28-2SH quick coupling SU28-2SH1.Name:USA Type Quick Coupler2.Thread:NPT3.Shape:SH.SM.SP.SM.PH.PM.PF.PP(Female,male,hose barb,plug)4.Material:steel5.Size:1/4",3/8"1/2".(20/30/40 series)6.Surface treatment:Zinc plated7.Application:Pneumatic tool hose,Connection,Air Pressure,Equipment,Air piping,water.8.IMPA CODE:351221----351456 quick coupling SU28-2SH