The Pfeiffer Balzers Duo 20M Dual Stage Rotary Vane Vacuum Pump New is designed and manufactured to meet the demanding requirements of various industrial and scientific applications. Thanks to a very simple and highly reliable design, the Pfeiffer Balzers Duo 20M dual stage rotary vane vacuum pump provides great performance with high pumping stability. This pump has a hydraulic safety valve for operational safety, gas ballast valve and integrated magnetic coupling to eliminate oil leaks. These Pfeiffer Balzers Duo 20M Dual Stage Rotary Vane Vacuum Pumps have a pumping speed displacement of 14.25 CFM. This Pfeiffer Balzers Duo 20M dual stage rotary vane vacuum pump comes with a 1 year factory warranty. Oil, parts and accessories for this pump are available on this website. We also offer rebuild and repair services for this pump, see below.