45 Weird Home Improvement Terms All DIYers Should Know

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02.PEX

Family Handyman

What Is PEX and Why Is It Popular in Modern Plumbing?

PEX stands for cross-linked polyethylene, a flexible and durable plastic tubing used widely in residential plumbing. The “X” refers to the cross-links that enhance its strength and temperature resistance. PEX has gained popularity because it doesn’t require glue or solder, making installation easier and faster. It’s also less likely to burst in freezing conditions, a major advantage over traditional pipes. While many people recognize the term, few know what it actually means—yet it’s one of the most essential materials in today’s home plumbing systems

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