Reznor 120153 Orifice 320720-756 while the base model number

while the base model number is used for technical identification

preventing the intermittent open circuits or high-resistance faults that lead to costly HVAC system diagnostics and service calls

Key Benefits Dual Mounting Versatility: Equipped with both a foot mount and a 1/2 inch NPT hub for flexible installation in junction boxes or equipment panels

Streamlined Installation: Designed as a complete heater assembly to minimize downtime during field repairs and maintenance

This component is designed to work with the existing furnace gas valve and orifice configuration of your specific model

Reznor 120153 Orifice 320720-756 while the base model numberThe Reznor 120153 Orifice is a precision engineered #20 burner orifice designed specifically for maintaining consistent gas flow and combustion efficiency in industrial heating systems. As an authentic Reznor replacement part, this 1 2" burner nozzle features a durable steel body with an NPT connection, ensuring a leak proof seal and long term reliability under high thermal stress. For contractors servicing Reznor unit heaters or duct furnaces,