Kirby Universal Bag Kirby #204811 - Universal Hepa White Cloth Bags for All Generation & Sentria Models (6 Bags & 1 belt) Universal style bags fits both F-style and twist-style Kirby Models! Fits ALL Kirby models Generation 4- Sentria II. Reduces common household dust, pollen, mites, and other particles White, HEPA cloth material 6 bags & 1 belt per package