Workforce&reg; 3/8" x 5' Red PVC Air Whip Hose with 1/4" Ends Outer cover and inner tube are made from highest quality PVC materials Twin Spiral Braiding - Extra strong polyester textile cord adds reinforcement to inner tube 360 ball swivel ends increase the life of the primary hose 350 PSI maximum working pressure 1/4 in. MNPT x 1/4 in. FNPT