Filter Cartridge Replacement (Pair) for the TigerShark, TigerShark 2, Excalibur or Pinnacle 2000. Patented easy-clean filter cartridge system - no messy bags to deal with! Simply remove from the bottom of your TigerShark after each use and rinse dirt and debris away with a garden hose. To replace the cartridges after opening the unit slide the 2 cartridges up as shown in the diagram below.