This is a complete 87i replacement impeller set for the AquaManta EFX 600 external filter
. Please note that the 87i impeller is replaced by the 88i impeller in newer models of the EFX 600. Newer models will have a label on the canister head saying "88i".
In order to achieve optimum performance and maximum flow rates from your filter please ensure that you regularly clean the filter and check both the impeller and its housing, in accordance to the loading on the filter. If the filter starts to make a rattling noise, check that the impeller shaft is not broken and that any rubber grommets are in-place and not worn. Failure to do this will dramatically reduce the filter’s performance and could invalidate any warranty.