For technicians servicing residential HVAC blower wheels

05-inch round shafts or 3/8-inch to 5/8-inch square shafts

Does this switch work on Allied or Armstrong equipment

High-Durability Diaphragm: Built to resist premature wear and sticking

For a permanent HVAC repair

Lennox 78M19 Supply Air Sensor 340793-762 For technicians servicing residential HVACThe Lennox 78M19 Supply Air Sensor (alternative part C0SNSR20AE1) is an essential component for maintaining precision discharge air control in high performance HVAC systems. Designed for integration with Lennox Prodigy Unit Controllers and CORE Control Systems, this supply static differential pressure sensor provides the critical feedback needed for Constant Air Volume Bypass (CAVB) and Variable Air Volume (VAV) applications. Whether you are servicing