Heavy duty non-toxic FDA compounded PVC with nylon reinforcement. For pressurized drinking water systems and many other uses. Resists odor, taste and up to 250 PSI/WP (depending on I.D. size) @ 70°F (21°C). For cold and hot tap water. Operating temperatures +20° to +150°F. (-7° to +66°C) Good flexibility and bend radius.* CA prop 65 Compliant.