These replacement filters are the same size as the original filters. The round sponge and felt pad are the same density as the original. The Hepa filter is slightly different in that the original has wire mesh and the replacement does not. (See pics) Not sure if the Hepa replacement is washable. I will delete my original but I wanted to replace it so it has enough time to dry. I have to vacuum several times a day and collect some fine powder from my birds. Clogged filters = overheating of the vacuum and reduced suction power. Problem solved with these filters. I have next day delivery.