making it suitable for heavy-duty radiant heating system applications

nitrogen-tight fit for reliable system isolation

Broad Compatibility: Universal 120/240 Vac operation and 20" Hg to 100 PSIG range fits most commercial HVACR specs

shaded pole

The lead-free copper silicon alloy construction ensures compliance with potable water regulations while maintaining high mechanical strength

Lennox 56K26 Flue Box 340793-762 making it suitable for heavy-dutyThe 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