Vinstar Add-A-Wire Thermostat Accessory - In applications where additional wiring cannot be run Add-A-Wire? accessory can be used to add a wire to the thermostat

Vinstar Add-A-Wire Thermostat Accessory | In applications where additional wiring cannot be run Add-A-Wire? accessory can be used to add a wire to the thermostat | Easy to install | Easier than running new wire | Allows 5 wire thermostats to use only 4 wires | Also allows 5 wires to work like 6 wires | Add a second Add-A-Wire to allow 5 wires to work like 7 wires | .5 Lbs