Roots 33 DSL Blower Integrated Auto Pump Out Cleans at pressures from 100 to 2,000 PSI Operating temperatures from 185-210 degrees The Liberty-XT was designed from the ground up to fill the growing need for a quiet, compact truck mount. Along the way we decided to make it the most powerful and feature rich unit of it’s kind. We simply would not settle for air cooled engines, tiny little pumps, sub-par cleaning temperatures and inferior materials. We knew we wouldn’t be able to build the most inexpensive machine out there but we were positive we could build a machine that would blow the doors off the “budget truck mounts” without burning a hole in your pocket!