The Brinkmann Model B-169 recirculating water aspirator is an economical alternative to tap water aspirators. It provides a reliable vacuum source using a 10 liter reservoir. By recirculating its contents, the unit eliminates environmental contamination caused when corrosive vapors travel down a drain. A 15L/min flow rate quickly achieves an ultimate vacuum of 20mbar on two independent vacuum ports. Polypropylene reservoir resists corrosive vapors.