High-Impact Construction: Built to withstand constant thermal cycling and corrosive condensate oversight common in high-efficiency furnaces

The Lennox 80W51 Pressure Switch is an essential safety component designed for Lennox furnaces and higher-efficiency HVAC systems

the mounting bolt patterns and discharge orifice diameters vary between model series

a specific high-altitude pressure switch (such as the 193811) is required to account for lower air density

Browning B45 Belt 320788-703 High-Impact Construction: Built to withstandThe Browning B45 Belt is a heavy duty Type B Super Grip Belt engineered for high demand HVACR power transmission and industrial drive systems. Technicians rely on the wrapped V belt construction of the B45 to provide superior flexibility and resistance to sudden load changes, which is critical for fan and blower motor maintenance where slipping or misalignment can lead to premature failure. Featuring a 48 inch outside diameter and a 21 32 inch top