The Welch 1405 DuoSeal Belt Drive Rotary Vane is a durable vacuum pump with a superior vapor handling capability. The Welch 1405 DuoSeal Belt Drive 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 1405 DuoSeal Belt Drive Pumps have a pumping speed displacement of 3.2 CFM, operate on 115 VAC. Product number 1405B-01. Please call to get discount information when purchasing multiple new Welch vacuum pumps. An Owners Manual PDF can be downloaded, by scrolling down to (AVAILABLE DOWNLOADS)