This unit serves as a direct upgrade and replacement for legacy models 066161 and earlier 200RB series iterations

allowing the system to resume normal operation once safe temperatures are restored

Built with a robust plated housing and a silicone-compatible diaphragm

High BTU Rating: Certified 5

Lennox 73K81 Ignition Cable 321702-401 This unit serves as aThe Lennox 73K81 Ignition Cable is a critical OEM replacement component designed to maintain the electrical integrity of the ignition circuit in residential and light commercial gas furnaces. Engineered to withstand high voltage output from the furnace ignition control board, this cable ensures a consistent spark or heat signal reaches the ignitor to initiate the combustion cycle. Constructed with premium, high temperature resistant insulation, the