Emperor® Power Filters

Product No. PF0400BD
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Emperor® Power Filter Systems are advanced aquarium technology at its finest. With a revolutionary design, the Emperor’s flow and filtration efficiencies are unmatched by other filters in their class.

Featuring as much as twice the filter cartridge capacity, additional chemical filtration capability, and extra large, spray bar-driven BIO-Wheel wet/dry biological filtration, Emperor Filter systems offer aquarists a filtration system that can stand up to any aquarium they can dream of.

Emperor® Power Filters is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Great Service when help needed! I have had a series of these filters which last for 5 to 6 years and by then somethings wear out and I buy a new one. My more recent filter was fine except it would stop pumping water to the bio wheels unpredictably. I thought maybe the fit for the impeller was a bit tight. Anyway I asked for help and got a very quick response saying you need this and this which they mailed out gratis. I installed the new parts and my filter is working as I expect it too. What a great company!
Date published: 2017-09-08
Rated 5 out of 5 by from never quit I've had this filter over ten years at least, a few parts fatigued over the years but nothing a twist tie couldn't fix. Paws now petco, gave me their spare pieces, (plastic spray tubes, clips) from old filters they didn't use. I'm about to finally get a replacement. Mine is STILL working, just so much salt buildup , little broken parts etc, and reduced water flow Warrent it. Again it's well over over ten years old. My best guess is 2004, it's 17 now. Great dual bio wheel system.
Date published: 2017-08-12
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I would like know if I can get new bio wheels for my filter. The petsmart where I got the said you can not get the bio filters said she they should never fail well guess what I have one that failed

Asked by: Go fish
Bio wheels are readily available on our site, other websites and at local fish stores. They only need replacing when they become damaged. If they stop rotating, most of the time you need to maintain the filter system by taking it apart, and cleaning it out, especially the motor and the impeller. You should also clean the bio wheel bearings, and make sure they are properly installed in the filter box. If you need the Penguin 350 bio wheels, they are sold here: http://www.marineland.com/Products/aquarium-parts/Filtration-Products-and-Skimmers/Penguin-Parts/BIO-Wheel-Parts-for-Penguins/BIO-Wheel-Assembly-Penguins-200B-and-350B.aspx and here: http://www.petmountain.com/product/aquarium-filter-bio-wheels/11442-576312/marineland-marineland-replacement-bio-wheel-for-eclipse-2-emperor-280b-400b-filters.html?utm_source=googleproductads&utm_medium=cpc&gclid=CjwKCAjw9O3NBRB3EiwAK6wPT488vZo193VYsPNfTGD0DiBrROdoXKw2ezn54AGw5NODBt1yqwZ8TRoCgngQAvD_BwE as well as other websites. Petsmart does not carry parts, which is why they told you what they did. BREX
Answered by: BREX
Date published: 2017-09-15

What power filter replaced the 280B 

Asked by: Ez Lopez
None did. We only have the Emperor 400. Next closest in size is the Penguin 200. BREX
Answered by: BREX
Date published: 2017-09-12

Where can I buy bio wheel filter replacement?

Asked by: Srdegler
These are available through various online vendors, and local fish stores. They are also available on our site: http://www.marineland.com/Products/aquarium-parts/Filtration-Products-and-Skimmers/Emperor-Parts/BIO-Wheel-Assemblies-for-Emperors.aspx. BREX
Answered by: BREX
Date published: 2017-09-12

Looking for smaller filter than #280 for 15-20 gal.tank for salmon rearing with chillers and water temps. under 40 degrees. Would you recommend Emperor 200?

Asked by: Uppie56
We do not make an Emperor 200 but the Penguin 200 would work well for your purposes. BREX
Answered by: BREX
Date published: 2017-08-25

What is the difference between the pro series and regular series of emperor 400 

Asked by: Rhall
Packaging and graphics essentially. We have not made any changes to the Emperor Filter since 2004. BREX
Answered by: BREX
Date published: 2017-08-25

Has the Emperor 280 filter been discontinued?

Asked by: joe j
Yes, it was discontinued a couple of years ago. BREX
Answered by: BREX
Date published: 2017-09-01

My Emperor 280 needs to be replaced. I have a 30 gallon tank so the Emperor 400 seems like overkill. However, the Penguin power filters appear to be less substantial. Are there replacement impellers for the Emperor 400 or for any of the Penguins?

Asked by: Robin1
Yes, they're out there.
Answered by: glentrs
Date published: 2017-08-12

What are the dimension of the filter box length and depth? Thanks for the help and have great weekend.

Asked by: bigpop
17L X 7W X 10.5H You do the same! BREX
Answered by: BREX
Date published: 2017-08-10
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PF0400BD - 80 gal/400 GPH

 Emperor Power Filter Manual

Emperor Quick Set Up Guide


Certified Flow Rate

Aquarium Size

Rite Size Media

Emperor 400

400 GPH

up to 80 gallons


Penguin & Emperor Cartridge Dimensions