Fluval 107 Motor Head Maintenance Kit is a replacement parts set for the Fluval 107 canister filter. The kit includes a new impeller assembly (magnetic impeller with ceramic shaft and rubber supports), an impeller cover, and the main motor head O-ring gasket. Using this kit, you can restore flow rate and quiet operation to a worn 107 filter by swapping out the impeller and sealing gasket, making it an ideal solution for fixing reduced output or noise issues in your filter.