This OEM replacement part is essential for maintaining the structural integrity and aerodynamic performance of Aaon rooftop units

it eliminates the risk of improper seating that often occurs with generic alternatives

making it a universal 24V solution

and certain A2L refrigerants like R-1234ze in York brand equipment

United Electric H54-25 Pressure Switch 319825-402 This OEM replacement part isThe United Electric H54 25 Pressure Switch is a heavy duty, field adjustable control engineered for reliable setpoint monitoring in industrial HVACR and process systems. Formerly identified by factory stock number 9516, this model is a direct equivalent to the H54 25 9516, offering a versatile 10100 PSI adjustable range. Designed with a Single Pole Double Throw (SPDT) snap acting switch, it provides high capacity electrical ratings of 15A at 125 250