18/5 Thermostat 18AWG 5 Conductor Unshielded 500ft cable 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. This thermostat cable is suitable for installations in residential and commercial riser rates environments. It is excellent for thermostats, HVAC controls, heat pumps, intercom systems, remote control units, doorbells, alarms, and other power limited applications. ETL verified, Conforms to UL STD 444 Certified to CAN/CSA STD C22.2 NO.214 Cable length: 500ft Cable gauge: 18 AWG Cable conductor material: 100% Bare Copper PVC jacket