3700lb working pressure. Temperature range, -4 degrees Fahrenheit to 140 degrees Fahrenheit. TPR Hose is 60 percent lighter than rubber. Use as a replacement hose or as an extension of an existing hose Thermoplastic rubber hose is 5/16 in diameter, 50' in length and is coupled with Metric - female x female ends. It has superior strength, flexibility and is ozone, abrasion and kink resistant. WARNING: NOT FOR STEAM SERVICE.