Emperor® Power Filter

Product No. PF0400BD

Emperor® Power Filter is rated 3.3 out of 5 by 32.
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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.
  • Three-stage BIO-Wheel® filters for freshwater and saltwater aquariums
  • The BIO-Wheel delivers superior wet/dry biological filtration for nitrifying bacterial growth, eliminating toxic ammonia and nitrite
  • Marineland® Rite-Size™ Filter Cartridges provide mechanical and chemical filtration, screening out dirt and debris and removing odors, discoloration and impurities
  • Multi-stage filtration for a clean healthy aquatic environment
  • Certified flow rate for Emperor 400 is 400GPH
  • Use the Emperor 400 on aquariums up to 80 gallons
Rated 5 out of 5 by from Clear, clean water I have used the emperor 400 series for man years. Excellent water conditions if you pay attention to them. Meaning the proper matainance for any filter system. I was actually looking for an Emperor for a smaller tank. Worth a shot for sure.
Date published: 2019-04-30
Rated 1 out of 5 by from NOISY! Decent filter but it is so loud it can't be used...tried everything to quiet it down but it's hopeless...
Date published: 2019-04-02
Rated 2 out of 5 by from Not for sand substrate I've had this filter for about 6 months. I've had to change the impeller 3 times already. I have sand substrate and it shaves away at the magnet causing the impeller to go off balance and create quite a noise. Once I replace the impeller the unit is quite again for another month or two. This might be an unfair knock at this product but everyone should know that this will likely happen if you have sand substrate. If there are any recommendations to permanently fix this reoccurring problem, I am all ears.
Date published: 2019-04-01
Rated 5 out of 5 by from This filter moves water! I purchased my first Mainland filter. I am absolutely amazing with how much water this filter moves. I am not a fan of the replaceable cartridges, but thats not a problem for me. This filter was worth the money and once it establishes a good biological filter I will be replacing my aqua clear 110 with another Emperor 400
Date published: 2019-03-18
Rated 1 out of 5 by from just up and quits working in just over a year to year and half, i have had to replace this unit 3 times. Each time it is the same problem, it stops sucking up the water into the unit. The only reason, i bought the same unit was becuase of all the supplies i have won't fit anything else. Im lucky if i get a couple months maybe 6 at best before it dies and i have to get a new one. This can't be normal, but the same issue on all 3 is ridiculous.
Date published: 2019-02-12
Rated 5 out of 5 by from Might work forever I've run one 400 steadily for 20 years before replacing it with another. I've never had any problems other than impeller wear. Now using four media holders And four bags of resins, etc., for 8 different media positions. There's space before and behind each side of media holders for the extra bags or packaged media. For me, results have long been no detectable waste chemicals in my 50 gallon tank.
Date published: 2019-02-09
Rated 5 out of 5 by from ALL you need, a wise investment I have had four Emperor filters and three LED lights on five different aquariums. I am currently running two emperor 400's on the back of my 75 gallon Marine land tank with two marine land heaters .They tend to make you lazy because they are so easy to change the filter material even when they are operating!!Up until recently I only had one problem and it was taken care of. The last LED light to fail was refused after I had it only 6 mos, but then PetSmart came through for me on their own took care of it.
Date published: 2019-01-24
Rated 3 out of 5 by from Water flow I have two filters on a 45 gal. aquarium the pingeuin 200 and the Emperor 400. why is the water flow on the smaller 200 much higher than the larger 400. Is the Emperor just a larger filter with the same motor as the smaller one. I get more ripple on the surface from the small 200 filter. why?
Date published: 2019-01-16
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