The Arrow 1/4 in. Filter/Regulator - Lubricator Combination Unit is an effective filtration device. These compressed air combination unit comes equipped with a water removing filter and a regulator. The filtration unit includes a 40 micron sintered bronze element that removes dust and dirt particles. The five ounce polycarbonate bowl and bowl guard featured in this regulator and lubricator unit includes a manual drain for convenience. The regulator is equipped with two full flow gauge ports and a three position non-rising adjustment knob for function. A gauge is included in this filtration set for accessibility.