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Aqua Clear 20 Hang-On-Back Power Filter, UL Listed

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Aqua Clear

Feature(s):

  • Quiet
  • Low operating costs
  • Complete filtration
  • Large filter media volume
  • Superior contact time with filter media
  • Cycle Guard, for continuous biological filtration and superior water quality
  • Includes foam, carbon & BioMax Filter inserts
  • CycleGuard now with BioMax - Preserves beneficial bacteria for a stress free environment. A healthy aquarium requires "beneficial" bacteria. Invisible and harmless, beneficial bacteria are essential in the removal of toxic ammonia and nitrate.

Specifications

  • Maximum Output: 100gph
  • Full Flow Control: 33gph
  • Power Consumption: 6W
  • Aquarium Capacity: 5-20gal
  • Dimensions: 4.75" W x 5.75 H x 4" L


Product Manuals & Documentation

Aqua Clear 20 Hang-On-Back Power Filter, UL Listed

Owner's Manual available for download in Adobe PDF file format

Warranty

Warranty: 2 years from date of purchase.

47 Reviews

JULIA CRAWFORD from SEATTLE, WA UNITED STATES

05/24/2016

Experience Level: Expert

nice filter

Well built filter, easy to put together, easy to use. Keeps the tank clean (currently set on lowest volume per hour in a 20 gallon tank with too many gold fish). Originally bought it to use it as a mini-fuge on a nano reef but the gold fish needed it more. Might be buying a second one in the near future. Once in a while it rattles slightly (mainly the lid) but not a big deal. Been working great for 6 months so far and if my past experience with aquaclear filters is any indicator, I imagine it will work flawlessly for a long time.

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JODI from CRETE, NR

12/15/2015

Experience Level: Intermediate

GEM!!

This little filter is fantastic... no noise what so ever, Kind of miss the water fall sound that my other one had.

1 out of 1 found this review helpful

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me from CARSON CITY, NV UNITED STATES

12/23/2014

Experience Level: Beginner

happy

I really don't know much about filters, but this one seems to work great! The water has been clear, and that is what is important.

0 out of 1 found this review helpful

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Best Fishes from GA, USA

06/06/2014

Experience Level: Expert

Solid product but has limits

This is ideal for a small turtle tank or other freshwater application. I dont think it would be very good for saltwater applications due to waterfall water return = salt creep and pass through vs force through filtration. They could do more to quiet the lid, which rattles a bit when the pump is running.

1 out of 1 found this review helpful

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GABRIEL YODER from APOLLO BEACH, FL UNITED STATES

07/20/2013

Experience Level: Intermediate

Small Filter packs a punch

This replaced a single stage carbon filter that was large and bulky and loud. This on is small and compact, super quiet and the 3 stage filter basket does an amazing job of cleaning up my tank. I have a 29 gallon, that's more like 24 gallons after live rock displacement. It did a super job of cleaning up an environment that was in big trouble. My tank is super clear now..!!

3 out of 4 found this review helpful

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THOMAS VLASATY from TIVERTON, RI UNITED STATES

03/07/2013

Experience Level: Expert

Can't find a better filter

I personally own the Hagen AquaClear 20 for a 15 Gallon, 30 for a 29 gallon, 50 for a 40 gallon, and 70 for a 65 gallon. The 20, 30, and 70 all work perfectly, and have been for literally 4-5 years. They are they only HOB filter I know of that uses a reverse flow!!! Which is great for running media/housing macro algae!! There are some great DIY modifications to turn you AquaClear into a mini Refugium The ONLY complaint I have, is when I got my Aquaclear 50 last week, the top will not fit onto the filter!!!! I have done everything and I must have gotten a defective top/intake tube!!!! So that's why I only give 4 1/2 star

0 out of 2 found this review helpful

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VICTOR WILBUR from CORNING, CA UNITED STATES

08/02/2012

Experience Level: Intermediate

wildebor

i have aquariums for the last 25 yrs. i am well pleased with this filter pump. great value ,good quality

3 out of 5 found this review helpful

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STUART GLASSOFF from BRONX, NY UNITED STATES

07/11/2012

Experience Level: Intermediate

used before

Have used this system on my tank for years. just recently it broke. this one is a replacement. I recomend it very highly.

1 out of 2 found this review helpful

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RICHARD DAVIS from MAGNA, UT UNITED STATES

03/17/2012

Experience Level: Intermediate

Great product

Love it.

0 out of 4 found this review helpful

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ANTHONY KAO from MALIBU, CA UNITED STATES

11/28/2011

Experience Level: Expert

Best Filter

I've used this filter for over 20 years. Simple design, great water flow. Nothing ever goes wrong with it, it lasts forever. I like the simplicity of it, easy to clean. It's the only hang on filter I use. Great for both fresh and saltwater. I even use them for my reef tanks, works great! Hands down the best hang on filter on the market.

9 out of 9 found this review helpful

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