I have been using another brand of universal bags, envirocare, for my Sebo and Windsor vacuum cleaners in my business since 1995. Use more than 100 bags per year. These bags are about the same price as envirocare so I decided to give them a try. I think I have a commercial label on it. I had two bags that burst before they were half full and the rest leaked large amounts of dust into the vacuums. Wouldn't recommend it.