High-temperature water pipe has been designed for residential hot and cold water use in single family dwelling in conjunction with standard storage type water heaters. Its use for commercial or hydronic heating applications, or water heaters other than of storage type, will void our warranties. CPVC high-temperature water pipe has a long term stress rupture of 100 P.S.I. at 180 deg. F. steady water temperature and 400 P.S.I. at 75.4 deg. F. Wall thickness has a + tollerance of 0.020 In. Conforms to ASTM Standard 2846. Buff color.