New!! Genuine Numatic NVM-1CH High Efficiency Hepaflo bags to suit Henry, Hetty, James and all Numatic 180,200 & 250 series vacuum cleaners.They are up to 14 times more efficient than paper bags in retaining fine dust within the bag. They replace paper bags NVM-1C/2 and NVM-1C/3. * Improved filtration efficiency. * Improved cleanliness and operational capacity. * Pack of 10.