Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

Works perfectly

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.

My 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.

Genuine part, works great

Had to replace due to my part breaking. Works perfect.

I little than expected, but still fit. Works well and QUIET, which is what the old one wasnt after 12 years of use.

I was about to throw away the old emperor 400 filter due to the constant grinding and sucking sound it was making. I decided to buy this impeller for it just to see if I could fix it and sure enough the filter works perfectly! Super quiet

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

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

Fixed my problem.