1/2 inch Pex B Pipe 200ft 1 Roll RED Tubing Non-Barrier Radiant Water Plumbing
1/2″ 200ft RED Pex Tubing/Pipe Pex-B Potable Water Non-Barrier. ASTM F876: Standard Specification for Crosslinked Polyethylene (PEX) Tubing. ASTM F877: Standard Specification for Crosslinked Polyethylene (PEX) Plastic Hot- and Cold-Water Distribution Systems.