Official Aqua One 69c Carbon and Wool Cartridge for use in the AquaStart 340 Pro aquarium series trickle filtration system. This essential filter spare from Aqua One should be replaced every 6 weeks
Official Aqua One 69s Green Sponge Pad for use with AquaStart 340 Pro Series aquariums from Aqua One. The 69s may be rinsed in discarded aquarium water and reused. Replace every 12 months as the cell structure starts to deteriorate.