Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

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.

I have had one of these(maybe this one) running since this model came out on a variety of tanks. I dropped a couple of them over the years and this last one is the one that made it. For some reason I felt attached and didnt want to throw it away. This brought new life to the filter and I didnt have to. This kept a purple tang from water quality issues or cycling with a new filter.

This replacement set makes my filter quiet like it should be! The magnet is much stronger than the original one, which helps keep it in place better.

Nice and quiet

Fixed my noisy low flowing pump. Easy to replace and saved me from buying a whole new unit.

A++

Reduced noise of of unit considerably. Old impeller had a faulty rotating surface causing it to wobble. This solved the issue, and filter is much quieter than before the change.

Pump works like new again. Last one lasted almost 10 years.

Works perfectly

An exact fit for my Emperor pump, solved my rattling noise problem. Now Im whisper quite