18-5 Thermostat 18AWG 5 Conductor Unshielded Cable; Red The 18AWG UTP CL2R Thermostat Cable is wrapped in a PVC jacket, and is perfect for power limited applications. SpecificationsColor: RedCable Conductor Material: 100% Bare CopperCable Gauge: 18AWGCable Length: 500' This product features a 500ft 18/5 CL2R UTP 100% Bare Copper Thermostat Cable. The thermostat cable is composed of 5/18 gauge wires and is wrapped in a PVC (Poly Vinyl Chloride) jacket. Cmple 1332-N 500 ft.