The Cleveland Controls AFS-952-55-B Air Pressure Sensing Switch is designed for monitoring and controlling air pressure in HVAC systems. It offers reliable performance with a factory-set pressure range and adjustable differential for precise control. Ideal for use in various air handling and ventilation applications, it ensures optimal system operation. With durable construction and e... https://www.partshnc.com/afs-952-55-b-cleveland-controls-air-switch-for-pos