The DeVilbiss AC-0008-2 Compressor Pressure Switch helps regulate air tank pressure for compatible DeVilbiss air compressors by automatically controlling the motor's operation. It works by turning the compressor motor on when tank pressure drops below the preset cut-in level and shutting it off once the preset cut-out pressure is reached, helping maintain consistent air pressure and efficient performance. Made to replace a faulty or worn pressure switch, it helps restore dependable pressure regulation, improve compressor efficiency, and support safe operation. This pressure switch provides a practical solution for routine maintenance and reliable air compressor performance.