Multi-Speed Versatility: Features 3 speed taps to match the exact CFM requirements of different furnace and air handler heat/cool stages

For technicians troubleshooting furnace short cycling or blower motor run-on issues

Smith 100289433 Air Filter is a critical 14x14x1 disposable air filter designed for high-performance combustion air filtration in commercial and residential heating systems

making it suitable for high-purity air requirements

Can I use this short probe as a replacement for long-style probes

Lennox 74W76 Limit Switch 323080-701 Multi-Speed Versatility: Features 3 speedThe Lennox 74W76 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial Lennox HVAC systems. As a veteran grade furnace high limit switch, this OEM part is calibrated with a 200F cut out temperature to prevent heat exchanger damage and ensure safe operational cycles. This auto reset switch (Part #102135 11) is engineered for high demand environments, offering reliable continuity for