Numatic NVM-1CH 604015 HEPA-FLO High Efficiency Filter Bags (Pack of 10) Compatible Numatic Container Sizes: 160 - 180 - 190 - 200 - 220 - 240 - 250 and 300. The container size can be found on the rating label attached to your machine. Specification: Pack of 10. These HEPA-FLO disposable filter bags for the Numatic Henry Hoover Vacuum Cleaner Range provide remarkable air flow while minimising suction loss as the bag fills. Suitable for all Henrys, Hetty, James and Numatic NRV200 vacuum cleaners, they are up to 14 times more efficient than paper bags in retaining fine dust within the bag.