Thermostat Wire, Solid, 5 Conductors, #18 Awg Conductor Size, 150 V, 250 FT Overall Length, 0.17 In Outside Diameter, 0.006 In Insulation Thickness, Copper Conductor Material, Polypropylene Insulation Material, Red;White;Green;Blue;Yellow, -20 °C Operating Temperature, +60 °C Operating Temperature, 31 LB/MFT