The Leybold Heraeus Turbo Vac TMP-150 turbo molecular high vacuum pumps have a pumping speed of 150 liters per second (l/s). The inlet is a 200 ASA with a ISO KF-25 exhaust foreline flange. The Leybold Turbo Vac TMP 150 turbomolecular pump can be used for all general-purpose high vacuum applications. These are excellent rebuilt high vacuum pumps and have been fully tested.