Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

Part was as described, arrived 1 day early.

Very noisy.

Unit arrived as promised. Will definitely order again in the future if needed. Replaced the old impeller in the Emperor 400. Fishes are happy.

Fixed my noisy low flowing pump. Easy to replace and saved me from buying a whole new unit.

Works great.

This impeller is excellent. Have had it installed only 4 days so far, but since the second I installed it, it has been whisper quiet. Even more quiet than I remember the original being on the first day I hooked up the filter. I would definitely recommend if your original filter impeller is getting uncomfortably noisy.

It works well, is quiet, and has prolonged the use of our physical/bilogical filter.

Just what I needed to stop the rattling noise…thank you!

Bought as a spare, exact copy and part number

Works better than the original.