Dirt Devil 083414 Extreme Power Stick VacuumUnable to order a replacement belt online or when I call their 800 number. Apparently you have to take the unit to a service center (which for me is 80 miles away) and then apparently they replace the working part of the unit, rather than just the belt. This explains why there is no instruction for replacing the belt in the owners manual and why I was unable to order the belt online at their website. The 800 number representative said I had to take the unit to a service center to have the belt replaced. On their website they essentially recommend replacement of other units belts every 3-6 months. Good luck on taking your unit to a service center every 3-6 months for belt replacement.