Add-A-Wire Accessory, Briidea Common Wire Kit for All 24VAC Thermostats (4 to 5 wires), White

This amazing product is a game-changer for anyone looking to upgrade their 4-wire system to a 2-wire system! With its ability to make one wire work like two, you'll be able to add a common wire to your heat-only system with ease.

The included yellow, green, and blue wire splice is directionally sensitive, ensuring that you get the best possible performance from your system.

Plus, it can't be used as an "R" power or "C" common wire, so you don't have to worry about any compatibility issues.

Get yours today and experience the difference for yourself!