The Black Diamond Filter Element helps your compressor draw cleaner air for more efficient pumping and steadier tool performance. If an air tool isn’t getting enough pressure or airflow, checking the filter element is a smart first step since a plugged filter can restrict intake. Replace worn or clogged filter elements to help prevent compressor problems and keep the unit running at a higher level. Designed for use with V-twin single stage cast iron pumps and built for durable service.