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• PEX stands for crosslinked polyethylene.
• Chief advantage is its flexibility and strength. It can make turns around corners without couplings.
• In a PEX plumbing system, a separate line is run from the main water supply to each fixture in a set up much like a circuit breaker box.
• Used for carrying hot and cold water.
• Excellent chemical resistance to acids and alkalis, but do not use for fuel oil, gasoline or kerosene systems.
• Do not weld with solvents. Join with heat fusion, flare, crimp ring or compression fittings.