A genuine replacement pump motor for the FX canisters, for the day the filter hums but moves no water, or stays dead after a power cut. It is the most expensive part of the filter, so diagnose before you buy: if the impeller inside is what has broken, the impeller assembly is a separate and far cheaper repair, and a seized impeller usually means noise and vibration rather than silence.
Fluval lists item A20201 for the FX5 and FX6, and a separate motor unit for the FX4, so choose your model from the drop-down. The FX impeller assembly is the part to check first.
Fits
- FX5 / FX6 option — Fluval item A20201, for FX5 and FX6 canister filters
- FX4 option — Fluval's motor unit listed for the FX4 canister filter


