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the A2123404 offers precise compatibility with hot water boiler systems where fluid velocity is critical for heat transfer performance
but serial number verification is recommended for 100% accuracy
5uF capacitance is required to meet manufacturer performance curves
a round ARD series or an appropriate opposed-blade model should be specified
Lennox 71M80 Concentric Kit 326058-756 the A2123404 offers precise compatibilityThe 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.
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