Shark Filter Cartridge with White Sponge 20ppi 2pcs (Add on cartridge)

This is a refill cartridge for Shark ADV internal power filters. It is an expandable modular cartridge that can be used alongside a wide range of Sicce filtration media. Can be customized for Bio Pellets and temporarily used and removed after use. Unique magnetic system provides easy installation, cleaning and maintenance. Comes with a foam filter pad.