this genuine OEM part is the standard solution for resolving ignition failures

Universal Replacement: Directly replaces part numbers 76776400 and 176776400 without requiring system modifications

including Ultra 155

What is the minimum flow rate required to actuate the FS1-J

Optimized Heat Transfer: Maximizes thermal conductivity to maintain Lennox furnace energy efficiency and reduce fuel consumption

Resideo ZD18X10TZ Damper 326058-758 this genuine OEM part isFor specialized zoning requirements, the Resideo ZD18X10TZ Damper offers a heavy duty solution for managing airflow in residential and light commercial forced air zoning systems. This 18" x 10" parallel blade zone damper is engineered with a high torque 24V synchronous motor mounted on the 10 inch side, ensuring reliable two position control. Designed specifically for normally open applications, the unit utilizes power closed spring return logic to