Unlike older silicon carbide models

triggering the manual reset temperature switch to prevent overheating

leak-free seat

Whether you are replacing a scorched wiring junction block or performing a full system overhaul

fast wiring in the field

Lennox 64L81 Air Flapper Els PW 17895 Unlike older silicon carbide modelsThe Lennox 64L81 Air Flapper Kit (LB 98453B) represents a critical component for maintaining the combustion integrity of legacy Lennox Pulse series furnaces. This genuine OEM replacement kit, containing 10 individual 3 5 8" OD diaphragms, is engineered to handle the unique pressure dynamics of Lennox G14 and G21 units. As a veteran grade air diaphragm kit, these flappers regulate airflow within the combustion chamber, opening and closing in rapid