This DR Power Pro XL321 Tow-Behind Lawn and Leaf Vacuum combines an extra-large size with exceptional power to provide all the muscle needed for the most demanding cleanup. The extra-large collection box makes it an ideal choice for larger properties or heavier cleanup tasks. The powerful 11.7 HP (16.96 ft-lbs gross torque) engine, works in combination with the massive Shark-Teeth impeller to create tremendous airflow that virtually eliminates clogs and leaves your lawn beautifully free of debris. The easy-opening clamshell collection bin and backless cart with a steep 60° dump angle ensures that unloading is fast, easy and thorough.