... quick release coupling 2.Hydraulic release quick coupling 3.brass,steel 4.one year guarantee 5.Different thread Pneumatic quick release couplingHydraulic quick ... steel with nickel plated . Part number: QHM09Features:1) Female Male different thread.(NPT ,BSP,BSPT,UNF....)2) Media: ... with Nickel plated, Zincplated, Copper plated. Our pneumatic quick coupler and plugs are available insteel, brass, and ...