Expansion PEX pipe provides superior durability, corrosion resistance and flexibility for the most demanding environments. It is available in red, white and blue for easy and simple identification of hot, cold and main water lines. It is manufactured by crosslinking during the manufacturing proccess. It is compatible with both expansion and crimp, clamp or sleeve methods of joining. Meets or exceeds all neccesary and applicable standards: ASTM F876, F877, F1807, F1960, F2080 and F2174.