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Designed for reliability in high-cycle environments
With a MERV 6 rating
or up to 50% ethylene glycol
because Carrier
Fabricated from durable materials to resist corrosion and maintain structural integrity under high RPMs
Lennox 77M09 Box 321894-708 Designed for reliability in high-cycleThe Lennox 77M09 Burner Box Side is a vital structural and functional component engineered for high efficiency gas furnace maintenance. As a critical part of the combustion housing assembly, this side panel provides the necessary containment for the burner sparks and flames, ensuring that thermal energy is channeled directly into the heat exchanger. For contractors performing a Lennox HVAC repair, the 77M09 serves as more than just a metal plate; it
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