Product details:

Hepex A1250625 Oxygen Barrier Pipe Tube, 5/8 Inch, 0.574 Inch Id X 0.574 Inch Od, 300 Ft L, 160 Psi, 200 Deg F, Pex, White Wirsbo Hepex Plus Is Heat Transfer Tubing With An Evoh Oxygen Diffusion Barrier. The Oxygen Diffusion Barrier Meets The Requirements Of The German Din Standard 4726. Wirsbo Hepex Plus Is Compatible With Both Wirsbos Propex Fitting Connections And Qs-Style Fittings Wirsbo Hepex Plus Is Manufactured To Astm F876 And F877, And Is Designed For Closed Loop Hydronic Heating Applications. Wirsbo Hepex Plus Tubing Is Rated And Listed By The Hydrostatic Stress Board Of Ppi At: 200 Deg F At 80 Psi, 180 Deg F At 100 Psi And 73.4 Deg F At 160 Psi.Note 1: 5/16 Inch Hepex Plus Tubing Is Used For The Wirsbo Quik Trak System.