With these Hoover Conquest type 'A' vac bags, you'll be able to continuously recover debris in large areas. Each case contains 12 packs of 3 bags (36 total bags) to fit the discontinued Hoover Conquest shake out bag models. We do however still offer the Hoover Conquest in a dirt cup model. These vacuums were pretty unique, because they could be used as a bagless vacuum, where the internal bag recovers everything and then can be shaken out and reused. Or, you can use these disposable bags with the vacuums to keep that dust and debris contained for easy disposal.