Improved System Reliability: Reduces the frequency of furnace lockout errors caused by weak or failing igniters

matching the control performance of traditional globe valves while offering a higher flow capacity

Regulatory Compliance: Meets local mechanical codes for gas appliance installations in high-altitude regions

this switch ensures seamless integration with the control logic of 240V systems

Lennox 44H12 Tubing 321894-708 Improved System Reliability: Reduces theThe Lennox 44H12 Pressure Switch Tubing is a critical 19 inch OEM replacement part designed for precise pressure monitoring in commercial HVAC systems and residential furnaces. With a 3 16 inch ID and 5 16 inch OD, this specialized tubing connects the inducer motor or collector box to the furnace pressure switch, ensuring the control board receives accurate pneumatic signals for safe ignition sequences. Constructed from high grade, flexible