Manual/semi-auto drain as standard. Rolling membrane regulator with secondary bleed and adjustable knob. 20?m element as standard. Simply unscrew bowl for servicing. Use individually or as part of a combination unit. | Pressure range: 0-8 bar. | Max inlet: 15 bar. | Body: Technopolymer. | Bowl: Polycarbonate with protector. | Filtration size: 20?m.