and 12" AC models within the 80 and 90 Series

This advanced composition ensures a rapid 3-second heat-up time

Reliable thermal protection is essential for preventing furnace short cycling and blower-only operation caused by overheating conditions

Robust Construction: Features high-grade brass and stainless steel internals to resist corrosion and ensure long-term mechanical reliability in demanding environments

Precise Measurement: Calibrated for a 0-125 PSI range to provide accurate suction side monitoring

Lennox 71M48 Hardware Kit 320734-701 and 12" AC models withinWhen you are out on a service call and need to restore a system to factory spec performance, the Lennox 71M48 Blower Hardware Kit (also identified as LB 107597A) is the OEM standard solution. This comprehensive assembly is engineered specifically for Lennox HVAC systems, including high efficiency furnaces and air handlers. As a technician, you know that using substitute fasteners or generic brackets can lead to vibration issues or improper blower