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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.