Machined from solid round brass

this unit is matched to 220V capacitor for compressors and should only be used in circuits matching the voltage specifications to prevent component failure

Field-Proven Durability: Features high-temperature ceramic construction that outlasts standard plastic versions in high-heat zones

Its snap-fit design

Always verify the part number against your specific unit's rating plate or manual before installation

Reznor 11831 Orifice Machined from solid round brassThe Reznor 11831 Orifice is a critical OEM replacement part designed for precision fuel regulation in gas fired heating systems. This brass gas orifice plug is specifically sized as a #35 natural gas orifice, ensuring the exact manifold pressure and BTU input required for optimal burner performance. In the field, installing the correct unit heater orifice is the difference between a clean, efficient burn and dangerous overfiring or soot accumulation.