EXELAIR by Milton Simply Better Airline system provides the best solution to manage compressed air. EXELAIR Lubricator features a Polycarbonate bowl with a capacity of 4.56 oz.. FRL Lubricator delivers a consistent mist of oil through the airline and extends tool life. Oil amount is easily adjusted by rotating dial at the top of the unit. FRL Lubricator can be refilled either by removing bowl or filling through oil fill cap on top. Box includes mounting bracket with hardware Max Air Flow of 175CFM and a Max operating pressure 145 PSI.