Fits Fluval Edge. Fluval Aquarium External Filter Foam Insert 106 206 306 406 FX6 Sponge GENUINE. Fluval Ribbed Hose External Canister Filter Pipe Hosing + Rubber End Connectors. It also has a cutout that accommodates the inlet pipe of the aquarium's filter, so that you can place the item directly against the back wall.
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