Can You Pass This Basic Plumbing Quiz?Share:FacebookPinterestTwitterMailWhat is an alternative name for cross-linked polyethylene, which is an economical substitute for copper piping?11%Next Correct Incorrect PEX stands for polyethylene that has been cross-linked. What is an alternative name for cross-linked polyethylene, which is an economical substitute for copper piping? PEZ PEX REX DEX 11%
