EXELAIR™ by Milton a Simply Better Airline system provides the best solution to manage compressed air. EXELAIR™ Filter features a polycarbonate bowl with a capacity of 7.4 oz.. Bowl can be automatically drained under pressure or manually by rotating drain valve at bottom of filter with a push-to-connect drain tubing connection that channels water safely away. Max Air Flow of 140 CFM combined with a Max operating pressure of 145 PSI. Box includes: mounting bracket and hardware. Always install filter 20' feet down line of air compressor to allow air to cool and lessen the amount of water carried through the supply line. FRL components feature directional arrows to indicate the flow of air.