PVC Air Hose. PVC Air Hose is ideal for general purpose applications. It features a lightweight, flexible, kink-resistant design with bend restrictors. Its bright fluorescent blue color reduces chance of tripping while on a job site. Temperature range +20oF to +145oF. 3/8 inch diameter x 50 ft length. 300 PSI working pressure. 1/4 inch MNPT end fittings.