Offered as an equivalent to Dollinger 3031563, this mist eliminator element drops into the housing the original was built for. The element separates airborne oil mist from the stream passing through it, holding the droplets in the media until they join together and drain away as liquid. Mist eliminators earn their keep in two ways. They stop oil leaving the machine as an aerosol, which matters for both the surrounding work area and the oil charge itself, and they keep the discharge path clear so the equipment is not fighting unnecessary restriction. Elements are consumable and are replaced rather than washed. Our full listing of mist eliminator elements covers the other sizes, and coalescing air filters handle the same problem on a compressed air line. Note: This is an equivalent part and not an original equipment manufacturer (OEM) part number. Some manufacturers require OEM parts to maintain your warranty. | Air Supply Number: 06-28991