PEX Pipe 1/2 Inch 100ft 2 Rolls PEX Tubing EVOH PEX-B Pipe Non Oxygen Barrier Durable Leakage-Proof Flexible for Residential Water Lines in Homes PEX Radiant Heat Tubing(Red+Blue) - Amazon.com
SharkBite 1/2-in x 1000-ft Orange PEX-C Pipe With Oxygen-Barrier For Rant Heating in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com