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this comprehensive kit allows for a complete internal overhaul without the need to remove the valve body from the line
DSI (Direct Spark Ignition)
This OEM York replacement part is critical for residential and commercial units utilizing electronically commutated motor technology to maintain optimal airflow
The unit is built to ANSI Class 250 standards
preventing mechanical binding
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
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