driamor 10 Pack PF-S Fish Tank Filter Cartridges for Top Fin Silenstream PF-S Small Filters Cartridge Thickened Cotton with Zeolite Replacement Aquarium Filter Cartridge for TOP FIN PF10 Power Filters is up for auction in Pet Supplies. The current bid is $2.50, 74% below the $9.49 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.