Flexzilla hose is made from an engineered hybrid polymer, combining the best qualities of both PVC and rubber materials, and being superior to both. 300 PSI working pressure. Reinforced Bend Restrictor. Excellent abrasion resistance. Superior Bend Radius. Lightweight and easy to handle. Color: Bright Green. Size: 1/2 in. x 50 ft. Working Pressure: 300 PSI Threads: 3/8 in MNPT.