The SURGICAL Suction Regulator is designed to give accurate, precise control of vacuum up to 300 mm Hg from a centrally piped source. An easy access selector knob allows for Full Line, Off and Regulated Vacuum operation. Vacuum levels are indicated on a color-coded, glow-in- the-dark 2 gauge. Slimmer line saves space, yet our unit is more durable than ever. Over-sized knob for easy adjustment and operation. Weight bearing brass post prevents the case from crack- ing. Maintenance is easy and unit can be cleaned by flushing with cold sterilant.