This 1" NPT heavy duty micro filter is supplied with pre-assembled automatic overnight drain, 3 stage baffle system and 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 29 ounces and is protected by a safety metal bowl guard. Maximum of 250 PSI and 300 SCFM.