With ability to be configured as air-cooled/water-cooled, VS 80-110 and VS 135-170 Variable Speed Series combine Enduro airend with AirSmart control system. They maintain target pressure to ±1 psi and have Smart Mixing Valve technology that adjusts lubricant injection temperature based on ambient temperature. Models VS 80 and VS 110 provide from 85–558 and 112–719 acfm, respectively. Models VS 135 and VS 170 deliver from 125–862 and 139–1,056 acfm, respectively.