BluBird Rubber Air Hose Reel Dual Arm Assembly 1/2in x 50ft 18-gauge powder coated heavy duty steel construction. Dual arm offers stability on fixed or moving surfaces like trailers, production lines. 12-point ratchet system which helps lock out the hose at shorter lengths. 100% rubber construction, 300 PSI working pressure, 4:1 Safety factor . High strength polyester woven braided reinforcement . 1/2 Male NPT . Solid Brass fittings are . 4 finger grip bend restrictor for better use and easier control over the hose. Flexibility from -50°F to +190°F . Ozone , Abrasion , Kink BBRDA1250