Thermal Twin Pre-Insulated Pipe; Applicable Standard CSA B137.5, NSF/ANSI 14/61; Nominal Pipe Size 1-1/4"; Thickness 1.34"; Length 500'; End Connection PEX x PEX; Material Polyethylene; Material Specification ASTM F876/F877/F1960; Pressure Rating 160 PSI at 73.4 Deg F; Temperature Rating 200 Deg F; Application Buried or Aboveground Commercial, Residential, Pre Insulated Pipe System, Radiant Heating and Cooling System, Snow and Ice Melting System, Permafrost Prevention System, Turf Conditioning System; Weight 1.4 Lb; Inclusions/Features Jacket, Coil; Jacket Material Seamless High Density Polyethylene; Pipe Dimension 1.054" Inner Diameter, 1.375" Outer Diameter; Jacket Size 6.9"; Bend Radius 28"; Insulation Value R-9.06