The new Multi Vac creates the standard by which all outdoor vacuums will now be measured. Billy Goat engineers started with a rear wheel drive and top fill design. From there they added an adjustable intake, three speed transmission, a 40 gallon zipper less bag, and a quality Honda engine. From the expert in lawn and litter vacuums, Billy Goat has the right unit whether you're a property owner, contractor, or institutional user.