PEX-Al-PEX Pipe

Cross-linked Polyethylene (PEX) is a thermoset material made from medium or high density, cross-linkable polyethylene meeting the requirements of ASTM F876 and F877. PEX piping has been used in hot and cold water distribution systems and for hydronic radiant heating in Europe for many years. Introduced into the United States in the 1980's, PEX has replaced polybutylene (PB) as the most widely-used flexible plumbing piping.
PEX-Al-PEX Pipe