Flexzilla TM hose is from an engineered hybrid polymer, combining the best qualities of both PVC and rubber materials, and being brag to both. 300 PSI working pressure Bend Restrictor first-class abrasion resistance Superior Bend Radius unimportant and unproblematic to handle Color : fulgid Green Size : 1/2in x 50ft. employed : 300 PSI Threads : 3/8 in MNPT .