Thermostat Wire 18/8 - 500 Foot

Heavy-duty 500-foot spool of 18-gauge 8-conductor thermostat wire designed for complex low-voltage HVAC control applications, multi-stage heat pumps, dual-fuel systems, humidifiers, and smart thermostat setups. Class 2 power-limited circuit cable featuring a durable brown jacket for quick identification and a riser rating for running cable safely between floors. Ideal for advanced residential systems and multi-zone commercial equipment requiring maximum conductor flexibility.