Bestpex color coded tubing meets CSA B137.5, NSF 14, 61, ASTM F 876, F 877 and UPC standards. Approved for hot and cold water applications. Replaces galvanized, copper or cpvc water liens without soldering or glues. Recommended for potable water systems. Purchase in coils or straight sticks. Available in red or blue colors to allow easy identification of hot or cold water lines.