Venstar Acc0410 Add-A-Wire Accessory for 24 VAC Thermostats

Please pay with STRIPE. Our prefered payment provider. In applications where additional wiring cannot be run, the add-a-wire accessory can be used to add a wire to the thermostat. The accessory is also used to fix a broken wire, to make one thermostat work like two, add cooling to a heat only system, or add a common wire to a 4-wire system. made in United States. Manufactured by Venstar.