Attention to detail is important. In this case, what I ordered and received is not what I thought I was ordering. The filter that came with my Eureka The Boss SmartVac 4870 model has eight columns on the front, while the one I received only has four, as in the picture. Also, my vacuum had a cloth pad on the back for even finer filtration and a thick black pad around the rim for maximum sealing. The ones I received don't. If I look closely at the picture I would notice some differences. Seems to work well, but if true HEPA filtration is important to you then beware the buyer!