Name: USA Industrial Type Air Couplers(Air Coupler, Air Tool Coupler, Quick Fitting), Milton type; Body size: 1/4", 3/8", ... Name: USA Industrial Type Air Couplers, Milton type(Air Coupler, Air Tool Coupler, Quick Fitting); Body size: 1/4", 3/8", 1/ ... type; Surface treatment: Zinc plated, acid washing; Working pressure: No more than 150PSI; Application: Pneumatic tools, general air connections, air ...