Lennox 49K71 Limit Switch 318518-761 The 3/8 inch flare filter

The 3/8 inch flare filter drier leverages a specialized desiccant blend to neutralize hydrochloric and hydrofluoric acids

Common Questions What is the difference between a T&P valve and this pressure-only valve

it features a mounting configuration and shaft diameter that ensure a true drop-in replacement for worn OEM units

as some setups utilize a separate integrated ignition control for the combustion air inducer

The Sensus 143-62-023-43 ensures stable lock-up performance and reduces the risk of pilot fluctuations or over-pressurization

Lennox 49K71 Limit Switch 318518-761 The 3/8 inch flare filterThe Lennox 49K71 Limit Switch is a critical safety component engineered for precision temperature monitoring in high output furnace and air handler applications. This OEM furnace limit switch is factory calibrated to an L220F trip point, ensuring the electrical circuit breaks immediately if internal temperatures exceed safe operating parameters. As a manual reset limit control, it requires a technician to physically intervene after a high limit event,