Milton Micro Filter 6oz Metal Bowl Heavy Duty 250psi NPT Size 1/4” BOWES MIL 1018-8. Designed for the efficient removal of harmful foreign matter such as condensed moisture, pipe scale, dirt and rust from the air stream. - The Milton micro filter features a large filter area of porous bronze giving less pressure drop and longer cleaning intervals, a three-stage baffle system for more efficient moisture removal, quick bowl removal for cleaning or changing filter elements. - All micro filters supplied with preassembled Automatic Overnight Drain. - Sintered bronze elements are permanent and cleanable. - Light weight aluminum die-cast housing. - Element range 10 or 40 microns exactly matching filter and air flow needs