Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

Reliable for many months!

Super easy to replace and works like its brand new. I have a video on YouTube on how to replace it

This impeller was just what I needed! It was easy to replace and my filter is now working like new!

My filter was super loud and this fixed it. It does seem to be a upgraded impeller.

Got my pump working again, what can I say! Need to replace this after 3/yrs of non-stop running.. wore this part out...

Works great it quieted down my noisy filter. The shipping was a little slow but over all a good deal.

OEM quality and it worked perfectly. So far so good and i was certain i wouldnt have a problem anyway!

It 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.

It fit, but might be a bit noisier than the original impeller.

It works in a marine land filter