I ordered this belt to replace my original 2 year old belt which ended up stretching too far to turn the roller. I have a little Powerless vertical bag with washable filters. Two years and still like a champion! I was concerned that the sizing might not be correct as when I placed the order I found the size was not listed but no worries. They should all be in the same size range. My vacuum needed #12 belts. It was perfect. Very tight on the reel and motor. Unhooking the old one from the motor pin was more difficult than installing a new one. I've vacuumed and picked up tons of lint from the carpet, which wasn't very dirty, but... I've found that you need to change the belt every six months for optimal brush rotation, and now I understand why. I'm almost 40 and have used vacuums at my local hardware store, but didn't realize how a new belt would change the way the brush works. These belts were great. Good price, they were easy to find, delivered quickly and very cheap. When I searched the crate store where I bought the vacuum cleaner, I had no luck finding a replacement belt. I also noticed that the replacement filters were very expensive in store compared to the price of a full set at Revain. I'll get these soon too, as my foam filter is slowly wearing out. I blow out the filters with an air compressor instead of washing them because then I don't have to wait for them to dry before using them. I vacuum 3-4 times a week, no animals, oven dust. Still on the first line. A good product.