The Black Diamond Air Filter Element helps your compressor pull in clean 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 and reduce output. Replace old, clogged filter elements to help prevent compressor problems and keep the unit running at a higher level. Designed for use with 14 and 18 CFM high flow single stage pumps.