Carpet Pro Heavy Duty Commercial Upright Vacuum CPU-4NThe Carpet Pro CPU 4N is a true commercial machine and includes many conveniences not found in a typical commercial machine including an Easy Bag Change System and a By Pass Motor System. The relatively small and compact size of the Carpet pro CPU 4N Heavy Duty makes it very easy to use. With it's small turning radius and foam grip handle you can clean under beds, carpets, bare floors and more. The CPU 4N Heavy Duty is the perfect commercial grade