Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

Works perfectly in my emperor 400 filter!

Ran my pump dry one too many times and wasnt sure what was wrong so as a last ditch effort before buying a new filter I figured Id try this impeller and it not only fixed the suction problem, it also COMPLETELY silenced by filter. Highly recommend. Id recommend buying two though so in the event you ever need to replace it you already have the backup impeller.

Works fine

It fixed my noisy Emperor 400.

Came on time and works perfectly! Filter noise down to zero!

The impeller broke due to low water in the aquarium a school that hasn’t been visited in months. Fish still alive! This replacement works great and now the tank is quiet! The same Marineland 400 has been in the tank since it was purchased which was a number of years ago.

Very noisy.

Filter is quiet again. Took less than 2 min to change out and be up and running

Really cool :-)

My Emperor 400 was loud when I changed out the old propeller for the new propeller it got nice and quiet thank you