This 1/2" NPT Milton micro filter is supplied with pre-assembled automatic overnight drain, 3 stage baffle system and a porous bronze 40 micron filter element. Micro filters remove harmful water or oil condensate, pipe scale, dirt and rust from compressed air systems. The corrosion resistant metal bowl has a capacity of 9 ounces and is protected by a safety metal bowl guard. Maximum of 250 PSI and 115 SCFM.