For Kenmore canister 5055 18 bags per pack. These are generic replacement Vacuum Cleaner bags made by ZVac For Kenmore Type C or 5055, 50555, 50557 and 50558 Style Bags. These bags are 40% more efficient at capturing fine dust and airborne allergens then standard single ply bags are. ZVac can enforce much better quality control, and guarantees there bags never to tear, or burst open when vacuuming, promising a full replacement at no charge if it were to rip during vacuuming. Each package includes 18 ZVac bags per pack, and replaces part 20-50557, 20-50558, or 5055 type C.