Refurbished BOC Edwards EXT 70 turbomolecular pump (p/n B722-01-000). OPTIONAL: EXDC80 & EXDC160 controllers. Edwards EXT 70 turbo molecular high vacuum pumps have a pumping speed of 70 liters per second (l/s). The Edwards EXT 70 turbo molecular pump inlet is Conflat 4.5 inch with a ISO KF-16 exhaust foreline flange. The Edwards EXT 70 turbomolecular pump can be used for all general-purpose high vacuum applications. Please contact us for complete BOC Edwards turbo pump details. (EXT70 / EXT 70) (B72201000)