PEX Tubing 1/2' x 500ft PEX Pipe Oxygen Barrier O2 EVOH Radiant Floor Heat Red 1/2' PEX Tube EVOH Oxygen Barrier 5' Bending Radius Various Tube Connection Different Installation Ways Wide Application Places Total Length: 500ft,Type: PEX Tube(Oxygen Barrier),ANSI/NSF 14, ANSI/NSF61, NSF-Pw (certified for radiant heating applications).:,SDR-9 dimensional standards.:,Inside Diameter: 0.475',Pressure Ratings: 188-217psi at 20; 101-108psi at 95,UPC listed by IAPMO.:,Temperature Range: -45 to 110( -47 to 230),Min.Bending Radius: 5',Nominal Diameter: 1/2',Outside Diameter: 0.625',Tube Thickness: 0.07'