REGULATOR,AIR FILTER W/OUTPUT GAUGE INLET PRESSURE 7 KG/CM2,REGULATED OUTLET PRESSURE:0-7KG/CM2 ENCLOSURE:WEATHER PROOF,IP65,FILTER BOWL:DIE CAST ALUMINUM FILTER:SINIERED BRONZE,15MICRONS MAIN VALVE:NEOPRENE MOULDED ON SS STEM END CONNECTION:1/4INCH.