These are genuine Numatic HEPA-Flo canister vacuum cleaner bags for the Numatic Henry model HVR-200M & James model JVH-180. Each bag has it's own seal, so when the it's time to replace the bag, you may easily seal the bag first before removing it, preventing a face full of dust while changing the bag.
Each box of bags contains 10 HEPA Filtration bags per package.
Genuine Nacecare Numatic part number; NVM-2BH 604016.