651/652 Series Filter Regulator - Lubricator A filter regulator with semi-automatic drain from ASCO’s 651/652 series with a lubricator. The units have a micron rating of 25 μm and are fitted with a polycarbonate bowl with bowl guard. These units come ready mounted and ready for installation. The 651/652 series is a modular air preparation system that is easy to install and can be easily configured to suit various compressed air applications. Features and Benefits • Assembly of filter/regulator and lubricator • Filter/regulator with low profile-integrated gauge • Polycarbonate bowls with bowl guard • Delivered mounted and tested