Sold as each. "Endust" brand microfiltration bag. For upright vacuums. Fits/designed for Oreck XL8000, XL9000, and XL2000 series. Dust seal to hold dust and allergens in while changing bag. Traps 99% of allergens such as, ragweed pollen, dust mites, animal dander, and spores. Pack of 3. Manufacturer number: W1300. Country of origin: United States. Distributed by Endust/Wildwood.