direct-fit installation across various packaged units and air handlers

2-inch outside diameter and 43

Check the model number on your unit's rating plate to confirm compatibility with Goodman furnace parts manuals

While widely used in the Knight series

Lennox 78A25 Pilot Orifice direct-fit installation across various packagedThe Lennox 78A25 is a critical component for technicians performing LP gas conversions or servicing pilot assemblies in residential heating units. This LP pilot orifice is precision engineered to meter gas flow with technical accuracy, ensuring a stable pilot flame for reliable ignition cycles. Primarily designed for LP Propane configurations, the 78A25 is a direct factory replacement and is technically identical to the Lennox 78A2501 part number.