We have a walk behind self propelled leaf/lawn vac, it is a 9 hp, I have used it 2 years and have moved up to a tow behind that hooks up to the zero, this unit works as it should and is complete, and it sure beats raking or blowing, although I do use the blower to run the leaves in a line so as to save time walking, this unit mulches them up to a finesize to burn or use for fertilizer in the garden, call if interested Bill or Chris