Manual/semi-auto drain as standard. Rolling membrane regulator with secondary bleed and adjustable knob. 20m element as standard. Constant oil flow. Fully assembled units comprise a combined filter, regulator and lubricator in a modular configuration. Body: technopolymer. Bowl: polycarbonate with protector. Filtration size: 20m.Features and Benefits Constant oil flow allows for a long lifespan Manual/semi-auto drain as standard, allowing for easy maintenance
