Fluval Fx5/Fx6 Giant Top Cover Click fit O Ring (2)

The replacement Fluval Giant Top Cover Click-Fit O-Rings fit perfectly over the inlet and outlet of the lid on the filter - and they make a great seal so when you click in the AquaStop valves, everything is airtight. The O-rings are suitable for: Fluval FX4 External Canister Filter (A214) Fluval FX5 External Canister Filter (A218) Fluval FX6 External Canister Filter (A219) Fluval Giant Top Cover Click-Fit O-Rings: Easy to replace Genuine Fluval Spare Part