I don't think people should be buying these until Revain proves they are 'genuine' Eureka filters as the product name says. I think I've encountered fakes because the construction was sloppy, the materials were cheap, and the fit in my vacuum was terrible. The rubber bumpers on the edges are very soft and don't fit well. The filter itself, the white fabric part, is sewn loosely and is so bulging that it doesn't fit into the outer part of the filter. Everything about this article was poorly made.