Practically NEW machine with only an actual 27 hours operating time. Oil and filter change have been performed along with a new battery for top performance. The new Advance PBU series propane-powered burnishers are loaded with performance features to make your floor shine in less time. The PBU series provides the fastest high-gloss burnishing available. The Advance PBU 21 has a 21 inch (53 cm) pad size and can burnish up to 25,000 square feet(2,322 m2) per hour. Simple controls ensure your operators won’t be slowed down with machine adjustments – just start it and go. Powerful 18 hp Kawasaki v-Twin-engine provide the torque to drive the pad at a high rpm that produces a sparkling shine. Select models offer catalytic mufflers, a heavy-duty felt seal on the shroud that provides the best dust control on the market and Carb GardT, a device that shuts off the engine if it detects harmful emissions. This is the least maintenance, straight forward machine you can select. Easy pad changing, low maintenance and rugged dependability round out the benefits.