Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

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

Easy install on my Emperor 400. Before it would be loud and grinding, wheels wouldnt spin no water would go through the tubes. After install it was like brand new quiet.

This thing is Great, my original impeller was causing my filter to become noisy and was barely pumping water through the spay bars making the bio wheels move very slowly. Once I replace the old impeller with this on I noticed a huge difference. My water was back to curculating properly and the filter has become completely silent, it wasnt this quiet when I first bought it. Great replacement product.

The old one was worn out and extremely noisy. This one is very quiet.

Reliable for many months!

Worked perfectly, I was worried I had to replace the whole filter. Im so glad I researched and found this.

Genuine part, works great

Exactly what I needed

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

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