Nordyne 264880R Tube Assembly R-22 you must install the regulator

you must install the regulator spring and hardware provided in the Uni-Kit included in the box

maintaining stable capacitance within a strict tolerance of +/- 5%

A common failure mode in older units is insulation breakdown due to thermal cycling

1/2-inch bore for compatibility with matching condenser fan motors

Nordyne 264880R Tube Assembly R-22 you must install the regulatorThe Nordyne 264880R Tube Assembly is a critical OEM replacement part engineered for high performance air distribution within Intertherm, Miller, and Broan manufactured housing furnaces. Built to withstand the rigorous static pressures of residential HVAC systems, this air tube assembly ensures balanced airflow and maintains the combustion integrity required for efficient operation. Technicians often encounter failing air tubes in older M1 or M7 series