Marineland PR2121 Impeller Assembly Emperor 400b Filter Parts for Aquarium

This was a brand new in pkg impeller. It was like a rebuild of my filter system and made it much more efficient and quieter too.

Works fine

It helped, my filters are now running much better and quieter. Ive had these filter for probably 10 years, so adding a small part to keep them running at peak really makes me happy.

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.

Exactly what I needed

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

Keeps my filter running great. Long lasting

Replaced broken (and very noisy) impeller on Emperor 400 filter. Compared to what we had, the noise level was reduced significantly. No complains so far.

I have had an Emperor 400 for many years. After some time, the plastic bushing on the impeller wears out causing unwanted vibration that results in a terrible noise. Simply replaced this part and I am back to a new unit. Very happy with the purchase.

Works better than my original did when it was new 10 years ago. Seems like a new design.