PowRyte Basic 300 PSI Rubber Air Hose - 1/2-Inch by 100-Feet, 3/8-Inch MNPT Brass Ends Good flexibility at temperature range -20 degrees F to 165 degrees F for all weather use Coils and stores easily for reuse Prime tough, spiral synthetic yarn reinforcement offers good 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; 3/8-Inch Inner Diameter; 100-Feet Long; 1/4" Male NPT(National Pipe Thread) Brass Ends