Understanding PEX Piping

Circle all letters that apply to PEX (cross-formulated polyethylene):

A. PEX is a soft plastic that comes in coils.

B. PEX is remarkably durable within a wide range of temperatures, pressures, and chemicals.

C. PEX is flexible.

D. PEX stretches to accommodate the expansion of freezing water and then returns to its original size when water thaws.