Nordyne 661048R Orifice 320734-701 Is this kit required for

Is this kit required for high-altitude installations

ensuring exact fitment and factory-standard safety

compatible with standard 5/32-inch O

63" WC to ensure accurate sensing of the inducer fan’s draft pressure for safe burner operation

Nordyne 661048R Orifice 320734-701 Is this kit required forThe Nordyne 661048R Orifice is a precision engineered #48 (. 048) gas burner component designed for the specialized fuel metering requirements of Nordyne heating systems. As a genuine Nordyne replacement part, it ensures exact gas flow rates necessary for maintaining combustion efficiency and heat exchanger integrity. This item serves as the direct OEM supersession for retired part numbers 661048 and 660541. In a professional HVAC gas furnace