This 3/4" NPT Milton® micro filter is supplied with a pre-assembled automatic overnight drain, which will operate when an air supply is shut down or when the liquid has gathered in the filter bowl. The included 3-stage baffle system offers exceptional moisture removal. This microfilter includes a porous bronze-sintered 40-micron filter element, which allows fewer pressure drops and longer cleaning intervals. Micro filters remove harmful water or oil condensate, pipe scale, dirt, and rust from compressed air systems and are used as pre-filters to coalescing type filters to ensure high efficiency and long element life. The corrosion-resistant metal bowl has a capacity of 10 ounces. Maximum of 250 PSI and 245 SCFM.