The Coilhose 150 1/4" industrial coupler, 1/4" FPT offers a durable connection for years of service. Designed with a knurled body, this manual push-lok fitting enhances grip for oily and greasy conditions. It comes with a drag guard to prevent the coupler from disconnecting. Buna N Seals offer a solid sealing surface. This brass air hose coupler has a maximum input of 300 PSI and a temperature range of -40 to 250 degrees Fahrenheit.