GAS Flex 3/4″ GAS Tubing Pipe Kit 66 ft with 2 Fittings Natural GAS or Propane 1003566

The PE layers protect against corrosion and create a shield so tubing can be embedded in concrete The aluminum layer provides stiffness to hold the tubing in the desired shape and fire resistance. Together the layers make up a flexible tubing that stays in place very low thermal expansion rate. Expansion rate similar to copper and steel.