Fluval Rubber Adapter for ribbed hosing, is suitable for:  - Fluval 104 External Power Filter (A200)  - Fluval 204 External Power Filter (A205)  - Fluval 105 External Canister Filter (A201)  - Fluval 205 External Canister Filter (A206)  - Fluval 106 Canister Filter (A202)  - Fluval 206 Canister Filter (A207)