Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

thanks to this little piece, i dont have to put the TV volume up to level 40 anymore...it did quiet down the whole filter. theres no more rattling and vibration noise. i will update if anything changes. so far...its been worth the purchase (2 weeks)

Was about to toss filter until you tube steered me to this,woke the filter from the dead. Nice water fall sound

Really cool :-)

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

good price.. worked great.. pump quiet now!

Work perfectly!

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.

exactly what I needed! thanks! fixed the issue with the filter and was less than 1/4 of the price to replace the whole thing

It is easy to install and uninstall for cleaning

great spare part