EnviroCare Replacement Micro Filtration Vacuum Bags for Hoover Type SR Canisters 3 pack Fits: Hoover Duros Vacuum Cleaners 3 Hoover Duros Type SR Vacuum Bags Fits original manufacture part numbers: HO-101010SR, 401010SR Dimensions: 2 Hole Diameter 13" x 6 1/2" Bag Size 3 7/8 x 4  Cardboard EnviroCare Premium aftermarket Part # 325