Maintain your vacuum and keep your Workshop or office clean with the Filta Commercial Vacuum Cleaner Bags to suit commercial vacuum cleaners. The unique 5-layer SMS technology provides superior dust capture, ensuring you are always sucking up dirt and dust keeping your worksite or office clean. 2B Numatic vacuum bags Suitable for use with the Numatic models Charles, Edward, George (15L, 2B) 15 litre capacity.