Barrier Tubing; Applicable Standard ANSI/NSF 14/61, CSA, CSA B137.5/B214, CAN/ULC S101/S102.2, DIN 4726/9, ETL, PPI TR-4, ICC-ES, IAPMO, CCMC, UL, UL 263, ULC S115; Outside Diameter 0.50"; Inside Diameter 0.35"; Length 100'; Material Polyethylene; Material Specification ASTM F876, ASTM F877, ASTM F1960, ASTM F2023, ASTM E84, ASTM E119, ASTM E814; Process Extruded; Pressure Rating 160 PSI at 73.4 Deg F; Temperature Rating 200 Deg F; Color White; Weight 5.51 Lb; Application Radiant Heating and Cooling System, Snow and Ice Melting System, Permafrost Protection System, Turf Conditioning System, Chilled Water Distribution, Hot Water Distribution; Packaging Quantity 28 Coils per Pallet; Nominal Size 3/8"; Thermal Conductivity 0.22 BTU/H/Ft/Deg F; Linear Expansion Rate 1.1"/10 Deg F per 100 Ft