... ,Size:Germany Tpe Nipple bsp1/4"M, 2,Material BrassFeatures:A: size: bsp1/4"MB: Working temp: -40-55oCC: Plug ... s size to design the quick couplerH: Material type :Steel , Zinc Alloy ,aluminium ,BrassWe have many coupler could suit for this ... plug:1,Universal coupler2,Germany Type Coupler Brass Quick Coupler