Fluval Motor seal ring is suitable for:
-Fluval 304 External Power Filter (A210)
-Fluval 404 External Power Filter (A215)
-Fluval 305 External Canister Filter (A211)
-Fluval 405 External Canister Filter (A216)
-Fluval 306 Canister Filter (A212)
-Fluval 406 Canister Filter (A217),