The Edwards RV8 is a low noise, dual mode high ultimate vacuum pump for scientific primary pumping applications. Features high-throughput and high vacuum (GB I / GB II) modes and 48 dBA operation with intrusive frequencies minimized. Displacement (60Hz): 6.9 CFM. Speed (60Hz): 5.9 CFM. Ultimate pressure: 1.5 x 10-3 Torr. Inlet/Exhaust Flange: NW25.