Lennox 12W49 Pressure Switch L99H008 this comprehensive kit allows for

this comprehensive kit allows for a complete internal overhaul without the need to remove the valve body from the line

DSI (Direct Spark Ignition)

Automatic Reseating: Features non-mechanical seat-to-disc alignment and a test lever for straightforward maintenance and operational safety

the L62GB-3 features a thermoelectric power unit that triggers the interlock

This igniter is compatible with various Lochinvar

Lennox 12W49 Pressure Switch L99H008 this comprehensive kit allows forThe Lennox 12W49 Pressure Switch (Model R20558702) is a critical OEM safety component engineered for precise combustion air monitoring in Lennox gas furnaces. This SPST pressure switch is factory calibrated to actuate at 1. 35" W. C., ensuring the inducer motor generates sufficient draft for safe venting before the ignition sequence begins. Designed for professional grade reliability, it features a standardized 1 4" barb connection for secure