Description
The AJ Antunes 8026204104 .3″WC Preset SMD Pressure Switch is an OEM-grade air differential pressure control component engineered for reliable performance in commercial HVAC and industrial airflow monitoring applications. With a factory-preset operating point at 0.3 inches water column (WC), this pressure switch accurately detects airflow changes, enabling precise control of ventilation, fan systems, and safety interlocks in heating, cooling, and air handling equipment.
Key Features
- Factory-Set 0.3″ WC Sensitivity — Ensures accurate differential pressure triggering without field calibration.
- Compact, Durable Design — Fits manufacturers’ specifications for modern HVAC and airflow systems.
- Reliable OEM Quality — Meets Antunes standards for long-lasting performance.
- Efficient Airflow Detection — Helps safeguard equipment by detecting abnormal pressure changes and supporting proper system cycling.






