The DR Power PRO SP Walk-Behind Electric-Start Leaf and Lawn Vac is a step up from the DR Power entry model with these updates: 1) Self-Propulsion (with 3 forward speeds and 1 reverse), 2) 33% more collection capacity (8 cu. ft.) and 3) an onboard chipper that lets you dispose of branches up to 2in. in diameter as you work your way around the yard. Also, bigger 14in. front tires and a flexible skirt on the intake snout will ride over roots, rocks and other irregularities on your yard without jolting the machine to a stop. With this vac you can keep the intake close to the ground, maximizing suction power, and work with fewer interruptions. The transmission uses DR Power’s EZ-Turn™ steering technology, so you don’t ever have to wrestle with the machine. The PRO SP is powerful, easy to use, and has one of the highest collection capacities of any walk-behind vacuum available!