Lennox 52M63 Collector Box 323080-701 Featuring an equal percentage flow

Featuring an equal percentage flow characteristic via a specialized internal disk

Dual SH DBC

Always verify your specific model and serial number against the technical documentation before installation

Built for reliability in condensing applications

Always verify the part number against your existing burner assembly or service manual to ensure the rod length and mounting bracket align

Lennox 52M63 Collector Box 323080-701 Featuring an equal percentage flowThe Lennox 52M63 Collector Box is an essential OEM component designed for the efficient management and venting of combustion byproducts in high efficiency residential furnaces. This flue collector box is engineered specifically for the Lennox G40, G43, G50, G51, and G61 series gas furnaces, serving as the critical interface between the heat exchanger and the combustion air inducer. Constructing a reliable seal at the "cold end," the 52M63 ensures that