AQUANEAT Replacement Canister Filter Pads Compatible with Cascade 1200/1500 CCF4UL/CCF5UL Generic Floss Aquarium Sponge MediaBrand: AQUANEAT Features: Compatible with Pennplax Cascade 1200 1500 CCF4UL CCF5UL, 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 Includes: 1xcoarse (Blue), 2x medium (Green), 1xfine