Reznor 120153 Orifice 320720-756 The Antunes Controls 8221210003 is

The Antunes Controls 8221210003 is a high-precision differential air pressure switch designed for critical monitoring of positive

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

Enhanced Safety: Integrated gas control mechanisms prevent unregulated fuel flow

The construction utilizes a durable polysulfone housing and a neoprene diaphragm

while the base model number is used for technical identification

Reznor 120153 Orifice 320720-756 The Antunes Controls 8221210003 isThe 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,