Compatible with Cascade 700/1000 (CCF2UL/CCF3UL) replacement canister filter sponges
4 pcs of sponge bio filter pads (1xCoarse, 2xMedium, 1xFine): trap most visible debris particles without restricting water flow (Reusable after rinsed)
12 pcs of white floss pads: Filter out fine particles providing crystal clear water
Provide both mechanical and bio filtration; reduce the frequency of changing your other filter media
