DuRyte Pro 300 PSI Rubber Air Hose - 3/8-Inch by 25-Feet, 1/4-Inch MNPT Brass Ends Contractor grade, Three year warranty: Very good flexibility at temperatures that range from -30 to 165 degrees F is for all weather use Coils and stores easily for reuse Tough, spiral synthetic yarn reinforcement offers excellent strength of maximum working pressure 300 PSI Solid brass end fittings never corrode and seal better than aluminum, steel, or zinc Maximum working pressure: 300 PSI; Bursting Pressure: 1200 PSI; 3/8-Inch Inner Diameter; 25-Feet Long; 1/4" Male NPT(National Pipe Thread) Brass Ends