Header Information:  Multistage Blower 30 to 3,000 HP and 2 to 25 psig 300 to 45,000 SCFM for air or gas, pressure of vacuum service.  The LS Series is the most advanced of its kind – the first multistage designed specifically for variable speed operation. Designed and built by 20-year industry veterans in the USA, the LS series offers superior performance range and efficiencies compared to traditional designs. These blowers are adaptable for air or process gas in pressure or  vacuum applications.