Where the GRABO leaves off, the HIGH FLOW picks up. This is the most powerful tool we’ve ever created. With a vacuum flow rate of 1.5 cubic meters per minute, there has never been a handheld, portable vacuum tool this powerful that grips the most porous materials. With our brilliant new pistol-grip design, you can easily lift, grip, move, or install heavy, porous materials on the job site with precision and confidence.