Description Specifications:Virgin Vinyl Construction - Outer cover and inner tube are made from highest quality PVC materials. Outer cover is oil and abrasion resistant. Temperature range 0Â to 140 FÂTwin Spiral Braiding - Extra strong polyester textile cord adds reinforcement to inner tubeRugged Bend Restrictor - Reduces wear and tear making the air hose last longerSolid Brass NPT Fittings350 PSI maximum working pressure1400 PSI maximum burst pressure1/4 in. MNPT threads