These are Hoover Style S vacuum cleaner bags made by Envirocare. Included with each package is 9 total bags. Save money, buy bulk! They are micro-filtration bags, which have multiply electro-statically charged filtration material,allowing 99.7% filtration efficiency. These bags are comparable to Hoover part number 4010100S. These bags work with Futura, Spectrum, and WindTunnel Canisters. Hoover S bags fit model numbers: S3509, S3510, S3511, S3513, S3515, S3517, S3519, S3520, S3520, S3523, S3525, S3527, S3530, S3533, S3535, S3535, S3536, S3545, S3545, S3547, S3549, S3549, S3551, S3553, S3555, S3557, S3559, S3561, S3563, S3565, S3567, S3569, S3571, S3573, S3577, S3580-050, S3575, S3585, S3595, S3605, S3630, S3636-050, S3639, S3640, S3641, S3643, S3649, S3655, S3755, S3661, S3765-040, U5097-930
- Generic Bags made by Envirocare
- 9 Bags per Pack
- Hoover Type S, Part # 4010100S
- Micro-Filtration Vacuum Bags, Great for homes with Breathing issues or allergies
- Fits Futura, Spectrum, and Windtunnel Canister Models
