The Royal / Dirt Devil Type U Vacuum bags,Part# 3-920048-001, are the correct bags that will fit your Dirt Devil model# 085570 Vacuum cleaner. The Royal / Dirt Devil Type U Vacuum bags,Part# 3-920048-001 will commonly fit all of the Dirt Devil Swivel, Ultra, Glide, and Magnum models. 

Here is a link to our GoVacuum.com website so you can view and purchase the The Royal / Dirt Devil Type U Vacuum bags,Part# 3-920048-001: http://www.govacuum.com/dirt-devil-type-u-vacuum-bags-10-pack-3920048001.html


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