Cerro 3/4"x10' Copper Type L Hard Temper Straight Pipe. It is made from Alloy C12200 (DHP) that meets industry standards and is NSF and ANSI Standard 61 certified. This pipe has a maximum working pressure of 1002.0 psi, a maximum working temperature of 400°F, and a minimum working temperature of 0°F. It comes with a 1-year warranty.