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Designed for reliability
ensuring your HVAC refrigerant control remains stable under varying thermal loads
maintaining a steady output even during supply fluctuations
reducing excess flow noise and energy waste
ensuring the exact cubic feet per minute (CFM) extraction of flue gases required by the heat exchanger
Lennox 71M80 Concentric Kit 320819-301 Designed for reliabilityThe Lennox 71M80 Concentric Kit is a professional grade 1 1 2" Concentric Vent Kit designed to streamline high efficiency furnace venting by combining intake and exhaust into a single roof or sidewall penetration. Engineered specifically for compatibility with Lennox HVAC systems, including elite models like the SLP99 and EL297 series, this OEM concentric termination kit utilizes a dual pipe design to isolate flue gases from fresh combustion air.