Zeluga 1/4in. Industrial Safety Plug Air Hose Brass Swivel Coupler. Anti corrosion, solid brass coating contruction gives longer service life. Easy use to connect and disconnect with the quick connection design. Suitable for pneumatic tools and with industrial air plug. Temperatures up to 250 degrees F and 300 PSI inlet pressure. This 1/4inch brass coupler has a 1/4inch basic flow size. Includes 5 pieces of Air Hose Brass Swivel Coupler.