FILTER - REGULATOR MODULAIR 160 SERIES 342 FILTER-REGULATOR 30 MICRON METAL BOWL WITH VISUALIZATION SEMI AUTOMATIC DRAIN PRESSURE 0-16 BAR WITH PRESSURE GAUGE D=50 G1 + OPTION 662593 ( ACCESSORY - OPTION - SPARE PART MODULAIR 160 SERIES 342 OPTION FOR REGULATOR - FILTER-REGULATOR - FILTRE-REGULATOR+LUBRICATOR KEY LOCKING DEVICE OF THE ADJUSTMENT BUTTON MOUNTED )