Coilhose Pneumatics PFX4050GS15XS Flexeel Max Reinforced Polyurethane Air Hose, 1/4-Inch ID, 50-Foot Length with 1/4-Inch Ball Swivel Coupler and 1/4-Inch Air Safety Plug, Industrial Interchange Reinforced polyurethane air hose for outdoor contractor or indoor industrial applications with maximum working pressures up to 300 psi Polyurethane tube and cover for durability, flexibility in cold weather, and resistance to weathering, abrasion, oil, and kinks Integrated braided nylon reinforcement for extra strength Temperature range of -40 to +165 degrees F Factory-installed 1/4" brass industrial interchange fittings: one ball swivel coupler for improved tool maneuverability and one air safety plug for controlled pressure release upon decoupling