Broad Application Range: Replaces multiple legacy part numbers including LB-74940A and 52W2901 across Lennox

Wide Compatibility: Direct OEM fit for a variety of Lennox

4" WC specifications for guaranteed compatibility with York GM9S chassis units

Can I use this as a universal HVAC pressure switch

Key Benefits Universal Compatibility: Reliable performance with 120 VAC systems requiring a 24 VAC secondary interface

Rheem-Ruud SP20794 Ignitor Freon Broad Application Range: Replaces multipleThe Rheem Ruud SP20794 Ignitor is a Direct Spark Ignition (DSI) electrode designed for precise combustion control in high efficiency gas furnaces and water heaters. As a veteran grade OEM replacement part, this spark electrode ensures a consistent arc to the burner, preventing delayed ignition and nuisance furnace lockout codes. The assembly is built to withstand high cycle thermal stress, maintaining its structural integrity in demanding 24V or 120V