

Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium
-
vee
> 3 dayWorks perfectly in my emperor 400 filter!
-
Desi
10-06-2025Had to replace due to my part breaking. Works perfect.
-
David Escutia
> 3 dayFilter did not work with old impeller. Filter works with new impeller . No complaints
-
Ilya
> 3 dayReplaced broken (and very noisy) impeller on Emperor 400 filter. Compared to what we had, the noise level was reduced significantly. No complains so far.
-
Kindle Customer
Greater than one weekMy 400 was never quiet from the start. After like 6 years, it was getting really loud so tried this. Now I just hear water from 3 feet away.
-
arais
> 3 dayIt is exactly what it says. I bought a used Emperor 400 filter and the old impeller was bent which made the filter extremely loud. This one fit perfectly and has made the tank far more enjoyable for my ears and also for my fish who are now getting proper filtration.
-
Lambert Mohr
> 3 dayIt works well, is quiet, and has prolonged the use of our physical/bilogical filter.
-
Manny
> 3 dayNice and quiet
-
Deathstar1
> 3 dayit was time to replace
-
Prof. Jaylin Ward MD
> 3 dayneeded a replacement and this worked just fine