Lennox 56K26 Flue Box R-22 This 20-inch black round fan

This 20-inch black round fan grille protects condenser fan blades and internal outdoor components from debris

mitigating the risk of premature contact wear or corrosion

While this module is manufactured using FENWAL technology

The high-grade alloy construction resists surface corrosion and fatigue

while typically found in industrial heating

Lennox 56K26 Flue Box R-22 This 20-inch black round fanThe Lennox 56K26 Flue Box (also identified as LB 79560) is a critical OEM replacement part engineered for high efficiency gas furnaces and boilers. Constructed from corrosion resistant stainless steel, this collector box is designed to manage the transition of combustion byproducts, ensuring that exhaust gases are safely and effectively channeled from the heat exchanger into the venting system. For a veteran technician, the 56K26 represents a reliable