Cannot be installed on my vacuum cleaner. The collar of this product is too tight. ShopVac, Craftsman or Ridgid products from the hardware store are easy to install. Don't trust previous reviews. The product has changed. The ongoing production cannot even be neatly arranged. The filter paper is too weak and creases before the filter is attached. Cleaning and wetting the mating surface with a vacuum will not fix this. Too many Amazon "affiliatesโ deliver useless products. I plan to return the item.