What type sweeper bags does a Hoover Futura canister sweeper use?

The Futura line uses Hoover "Type S" bags. The Hoover part numbers are 4010064S (for a pack of 3) 4010344S (for a pack of 10) or 4010100S (for a pack of 3, allergen filtration material.) They are usually easy to find at Ace Hardware, vacuum shops, or on the internet.