... ) Iterface: G1/4 3) Stabilized voltage, filter water,oil • Oil water separation filter pressure reducer unit » Product DescriptionPOLOVO AFC-2000 ... →Stabilized voltage, filtering compressured air of the oil-water ; → Filter the impurities,dust and make the pneumatic valve get ... They are widely used for automatic control system, especially apply to filter and relief-pressure treatment for air sources ...