Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

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

Totally silenced my Emperor. If your filtration system is too loud try this before buying a new pump/filter. Highly recommended.

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

needed a replacement and this worked just fine

My new Emperor Filter was very noisy, this replacement part fixed the problem.

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

Dusted off my OLD Marineland Emporor 400 and it was unbearably loud. Had to sleep with the bedroom door shut - so bad. I replaced the impeller with this one and it cut the noise in half, at least. Still not silent but normal. Side by side, the top and bottom rubber/plastic bits on the old impeller had worn down noticibly. Worth this $25 to save an old, reliable aquarium filter and the cost of replacing it!

works perfectly , quieter then the original

Fixed my issue within 5 minutes. Thats 5 minutes start to finish. Noise level is down and the water flow has gone back to where it should be.

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