Kirby Universal Bags: 6 Packs (36 bags) of Universal Allergen Reduction White Cloth Bags Kirby #204811 and 20 Kirby Belts #301291 -5 year supply - Genuine Kirby Product - shipped by BuyParts Universal style bags fits both F-style and twist-style Kirby Models! Plus 20 Kirby Belts HEPA Technology - White Cloth Bags For All Generation & Sentria Models Fits ALL Kirby models in the Generation 4- Sentria II range Increases performance on older models due to the new Micro fibre technology Kirbys best bags