Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

It works well, is quiet, and has prolonged the use of our physical/bilogical filter.

Fixed my problem.

Genuine part, works great

It did the trick and now my 400 works noise free and strong.I got this filter for $10.00 and all it needed was an impeller.So $10.00 for the filter and $14.00 for the impeller, thats $24.00 for a $60.00 filter.

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.

Too much for an impeller replacement

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.

Have a Marineland Emperor 400 that was rattling loudly. Inspected the impeller and noticed it was worn and had some slop in it. Purchased this and BLAMMO! No more rattling! Just a nice water flow sound...ahhh....

Bought to replace original Impeller in Emperor 400 Pwr Filter - new on Aug/2019 . (Only 2 1/2 years old) New Impeller did fix no water flow to spray bars issue. Also ran very quiet. (Well see how long this Impeller lasts.) Somewhat over priced. (Also see Youtube re repair Impeller by glue. Also tried this & it DID work).