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HeatLink® PureLink® Plus Coil Tubing With Oxygen Barrier, 1 in Nominal, 100 ft Length, Polyethylene, Material Construction: Polyethylene, Natural, 6 in Bend Radius, 1/8 in Wall Thickness, 160 psi Working Pressure, 73.4 deg F
High molecular cross linked polyethylene (PEX-a) with minimum bending radii of 6X the diameter at 68 deg F. Maximum operating temperature 180 deg F at 100 psi. Covered by a 25 years manufacturer's limited warranty. Comes with oxygen diffusion barrier which prevents oxygen from entering the heating system through the tubing wall.