The Welch 11 8925 DirecTorr Direct Drive High Vacuum is a durable vacuum pump with a superior vapor handling capability. The Welch 11 8925 DirecTorr Direct Drive High Vacuum dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pressure of 1x10-4 Torr. These pumps are commonly used for vacuum furnace evacuation, backing turbomolecular pumps, backing diffusion pumps, rotary evaporation, refrigeration system evacuation, epoxy degassing, vacuum sterilization, backing mass spectrometers, freeze drying, vacuum centrifugal applications, vacuum distillation, space research, and other vacuum processes. These Welch 11 8925 DirecTorr, Direct Drive High Vacuum pumps have a pumping speed displacement of 11.3 CFM, operate on 115 VAC, and are Brand New (Product Number 8925A) with full Welch Warranty. The complete Owner's Manual in .PDF format can be downloaded below.