These 1/4" hose barbs feature a steel drag guard to prevent accidental uncoupling. M-style couplers offer a basic flow size of 1/4" and have a maximum inlet pressure of 300 PSI. Designed specifically for Milton push-on and lock-on air hoses, these hose barbs require no clamps or ferrules; simply push the fitting in. Brass body with a Buna-N seal.