The Armstrong Furnace R41706-002 Heater Kit is a replacement heating component designed to restore reliable heat production in compatible Armstrong HVAC equipment. The kit works with the furnace’s heating system to generate and transfer heat into the airflow, helping maintain comfortable indoor temperatures. It is commonly used with compatible Armstrong furnaces and air-handling syste... https://www.partshnc.com/r41706-002-armstrong-furnace-heater-kit