Emperor® Power Filters

Product No. PF0280BD
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Perfect aquarium filters for both freshwater and saltwater aquariums.

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 3.7 out of 5 by 60.
Rated 5 out of 5 by from 9 Years & Still Filtering! I have used this filter for a 75 gal. aquarium for 9 years! It has run 24/7 all that time with short period outages due to power failures and cleanings. The only part replaced was the impeller. (replacement made it more efficient and quieter)I ordered a new Emperor 400--after all, 9 years is a long life.
Date published: 2017-04-18
Rated 4 out of 5 by from Good filter just need added filtering I have bought this filter to work with my freshwater tank and love the filter for the quiet operation and the flow is great. After adding some fish I made the mistake of dropping the fish into the tank with the water from the store that I bought the fish from and now the tank has a small cloud in it (I will never do this again) I have attempted to look for a micron filter to put in the 400 to help clear up the water and I have not found one. I think this would be a great addition for this filter. other then ant being able to use this filter to clear up the water it is a great filter so far.
Date published: 2017-04-18
Rated 1 out of 5 by from Emperor 400 I purchased an emperor 400 not to long ago , 2 days ago , the power went out and since then the filter hasn't been working right . I heard through the fish store these were top notch , but beginning to wonder, needs to pick back up after power outage. Must have put a gallon in filter last night.
Date published: 2017-04-07
Rated 5 out of 5 by from Emperor and Penguin only for me from now on Just got back into the hobby last year after about 20 years.Started with a 65 running Emperor 400. Loved how quickly I cycled the tank and how clear the water is. Second tank was a 40 breeder so I looked for an Emperor 280 to be able to use same Rite-Size E filter. Apparently the 280 is sadly discontinued. I remembered some other brands from the past so I picked one up. Long story short I'm replacing that ineffective filter today after about 6 months of cloudy water. I now have a 20 long, a 60 gallon, a 20 high and the first 65 all on Emperors or Penguins and they all are crystal clear and trouble free. The 40 breeder will have a Penguin today. Only gripe is that the Emperor 280 is no longer available.
Date published: 2017-03-24
Rated 4 out of 5 by from Great Filter system I have the system for two mounts now, it's doing a great job.
Date published: 2017-03-05
Rated 1 out of 5 by from The worst filter ever! I bougth it 3 month ago. Few days back it started doing noise and spary bar doent work, I cleaned everthing: impeller, spray bar and the bottom of the filter. I am really upset!!does it has warranty?
Date published: 2017-02-26
Rated 5 out of 5 by from Penguin longevity I have a Penguin 300 which i bought around 30years ago and it has just given up today, i cannot find any aquarium shop here in Australia who stocks them, can you give me a contact Number or agent to contact as i desperately need to replace it. On past performance i cannot go past this filter and highly recommend them to anyone considering purchasing one.
Date published: 2017-02-12
Rated 5 out of 5 by from Support Saved Lives My Penguin Bio 350 developed an intermit grinding sound after 6 months that caused my Rabbit to thump so loud that the neighbors called 911, shots fired. After all measures failed, I called Customer support with new no-charge empeller assembly. Results: Rabbit and Fish are out of Therapy. Family has moved back in. Roy
Date published: 2017-02-04
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I need 2 bio wheel replacements for emperor pro 400. Can not seem to find it on your site. The originals were damaged. Please help..

Asked by: Nstandrew
Just type Emperor 400 into the search bar and here you go: 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: 2017-04-11

How far down does that 400 hang on the back of the tank?

Asked by: Johnkevin
17 X 7 X 10.5 are the dimensions of the filter, with the last one being the height of the filter. BREX
Answered by: BREX
Date published: 2017-04-03

Does Marineland make a Emperor 400 pro series. All the pictures show they do but when you call Marineland they say they never had a pro series. What do I believe, your pictures you publish on line or your Word from your personal?

Asked by: K9Marvin
At one time, we had a packaging with "Pro Series" on the side of it. It was not overly obvious. The current packaging has not had this description on it for a couple of years now. We are in the process of updating all of our websites at this time. The description makes no difference in the filter, it is only a packaging change. I apologize for any confusion this caused. BREX
Answered by: BREX
Date published: 2017-03-29

I want to use 2 - 400's for 90 gallon saltwater reef/fish. Is this possible?

Asked by: Johnkevin
Yes, of course, why wouldn't it be? This filter moves a lot of water, and has plenty of space for any customization you may need to do, and comes with media containers to help you do it. BREX
Answered by: BREX
Date published: 2017-03-27

Do you sell the inside roller filters seperate 

Asked by: Majors
Yes, the bio wheels are sold separately via our website, local fish stores, and various online vendors. BREX
Answered by: BREX
Date published: 2017-03-23

me interesa comprar un filtro marinelad emperor 280 como puedo obtener el producto?

Asked by: Iracheta
Enviaré su dirección de correo electrónico a nuestro representante de exportación para México. BREX
Answered by: BREX
Date published: 2017-03-21

My Emperor 400 is only 6 months old. How can I stop the terrible rattle it makes? I bought a new impeller and recommended filters and it still happens. Do I have to turn off my bubbles or completely rebuild it.

Asked by: Paula 68
If you have a bubbler near it, that's the issue. Bubbles traveling up the intake tube will always cause a terrible rattling sound. Sand is also a culprit of this type of noise, so if you have sand, put filter floss inside the bottom strainer. Otherwise, clean out the impeller whenever the noise occurs in case it is other debris, but it sounds like the issue will be the bubbler. BREX
Answered by: BREX
Date published: 2017-03-14

Just curious, how often should I change the carbon insert sin my Emperor 400 I have it in a 75 gallon freshwater community tank (16 fish) with live plants.

Asked by: Gino
It is recommended to change carbon out at least once a month. BREX
Answered by: BREX
Date published: 2017-03-07
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 Emperor Power Filter Manual

Emperor Quick Set Up Guide


Certified Flow Rate

Aquarium Size

Rite Size Media

Emperor 280

280 GPH

up to 50 gallons


Emperor 400

400 GPH

up to 80 gallons


Penguin & Emperor Cartridge Dimensions