Male Coupling 1.Universal Crowfoot Couplings 2.size:1/4",3/8",1/2',3/4",1",1-1/4',1-1/2". 3,Material:Carbon Steel (Zinc Plat universal ... (US-Type) are all supplied with Oil-Resistant Rubber Gasket and all with holes for safety locking pins.1,Universal Crowfoot ... 1/4",1 1/2",2"6,Working Pressure: 150 PSI.7,Range of Working Temperature: +/- 40°c.8,Applications: For Air and Water ...