![Southwire 64169622 5 Conductor 18/5 Thermostat Wire; 18-Gauge Solid Copper Class 2 Power-Limited Circuit Cable; 50-Feet; Brown - Electrical Wires - Amazon.com Southwire 64169622 5 Conductor 18/5 Thermostat Wire; 18-Gauge Solid Copper Class 2 Power-Limited Circuit Cable; 50-Feet; Brown - Electrical Wires - Amazon.com](https://m.media-amazon.com/images/I/61ZjE4VPrQL.jpg)
Southwire 64169622 5 Conductor 18/5 Thermostat Wire; 18-Gauge Solid Copper Class 2 Power-Limited Circuit Cable; 50-Feet; Brown - Electrical Wires - Amazon.com
![Southwire 50-ft 18 / 7 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com Southwire 50-ft 18 / 7 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com](https://mobileimages.lowes.com/productimages/d0ab1176-ea02-4acf-9f34-826927a39cff/00468982.jpg)
Southwire 50-ft 18 / 7 Solid Thermostat Wire (By-the-roll) in the Thermostat Wire department at Lowes.com
![Advice on how to wire a 4 wire RGWY wifi thermostat to an old hvac with no c wire? - Home Improvement Stack Exchange Advice on how to wire a 4 wire RGWY wifi thermostat to an old hvac with no c wire? - Home Improvement Stack Exchange](https://i.stack.imgur.com/j5dG1.jpg)
Advice on how to wire a 4 wire RGWY wifi thermostat to an old hvac with no c wire? - Home Improvement Stack Exchange
![Southwire SIMpull 18 / 8 Solid Thermostat Wire (By-the-foot) in the Thermostat Wire department at Lowes.com Southwire SIMpull 18 / 8 Solid Thermostat Wire (By-the-foot) in the Thermostat Wire department at Lowes.com](https://mobileimages.lowes.com/productimages/92dcd894-16e0-45a6-884b-fb7447b3639f/61299786.jpg)