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Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6)

  • Based on 1,461 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Nov 25
Order within 21 hours and 35 minutes
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Size: Cascade 20


Features

  • QUIET & EFFICIENT: The Cascade 20 Mini Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 20 Gallons per Hour (GPH) for tanks up to 7 Gallons in size. Its great for Freshwater and Saltwater aquariums.
  • ACCOMMODATING: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. With a provided extension piece, the lift tube measures between 5 (min) and 6 1/2 (max).
  • EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquariums water.
  • OVERALL MEASUREMENTS: 4. 5 (H) x 3. 75 (W) x 3 (D)
  • SHOP PENN-PLAX FOR ALL YOUR PETS NEEDS: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 3.5 x 5.2 x 4.8 inches; 11.2 Ounces


Item model number ‏ : ‎ CPF6


Date First Available ‏ : ‎ June 22, 2015


Manufacturer ‏ : ‎ Penn Plax, INC.


Country of Origin ‏ : ‎ China


Best Sellers Rank: #24,214 in Pet Supplies (See Top 100 in Pet Supplies) #76 in Aquarium Filters


#76 in Aquarium Filters:


Customer Reviews: 4.1 4.1 out of 5 stars 1,461 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • decent little inexpensive filter
I have gone through a few of these. work fine for small/nano tanks. the cartridges are a bit lacking, but there is space to add some floss or other media if you like.
Reviewed in the United States on September 22, 2023 by FooBlah

  • Great for the size and money
Great little filter wish it came with filters - atleast 3
Reviewed in the United States on August 29, 2023 by David B.

  • Super low flow
Even with the flow maxed out it’s super mellow and perfect for a Betta or nano fish. I have it in a 10 gallon with 15 chili Rasboras and it provides just enough flow to give the water some flow and keep my floating plants in check.
Reviewed in the United States on July 13, 2023 by Hans Rathsack

  • This this is 100% the best filter i have ever seen in my life
Okay so i originally got this filter because everything else i tried is literally so HUGE, or works absolutely terrible or sucks way too much but not the debris. To start with this product, 10/10! It has great flow control, and my beta does not like too much flow so this was perfect. It keeps my water CLEAR, and i mean, the clearest water my fish tank has ever seen. On its highest flow, my beta swam right up to it and it didn’t even catch him. he just rubbed against it and swam right away from it. In terms of noise. there honestly isn’t any. I can understand other reviews saying the plastic rattles but it’s honestly so quiet it doesn’t even bother me in the slightest. I have a 6.5 gallon tank for reference and i 100% recommend this product, installing was easy. came in one piece. no complaints here 🫶🏼 ... show more
Reviewed in the United States on September 7, 2023 by Kristen Lounsbury Kristen Lounsbury

  • Arrived with a broken piece
The filter itself is nice, and will work well on my 5 gallon quarantine tank. I think it would be good for folks with beta's as it doesn't create a lot of disturbance at the surface as far as I can tell. However, one of the important pieces, the flow control valve, was broken in the box upon arrival. Without it the water will not suck up into the tube into the filter. Have contacted the manufacturer who I've had great success with in the past so I'm sure they will send a replacement piece. In the meantime I've applied some Gorilla Glue and hoping I can use it at least until the unbroken part comes. Can't wait to use it so I can quarantine some new fish for my bigger aquarium! ... show more
Reviewed in the United States on March 1, 2023 by Patti Thorne

  • Fish filter
I love this, it’s s big enough for my Beta fish.
Reviewed in the United States on September 24, 2023 by Placeholder

  • Cheap but works
This is a great filter for a low price, it only comes with one filter cartridge which kind of sucks. But it is pretty powerful, so powerful that I had to block some of the flow in my 5 gallon tank with some fake plants, my betta really didn't like too much water flow. Over all, it's a great cheap filter and lasts ... show more
Reviewed in the United States on April 9, 2023 by Liza

  • Works great for nano tanks
People need to read. it's called the cascade 20 because it filters 20 gallons per hour, NOT because it's for a 20 gallon tank. it's for nano tanks up to 7 gallons and works great for that size. I added black sand to my tank and the water was very cloudy. I added this filter and the next day it was much clearer, the following day it was crystal clear. The cartridges are very small and probably would need replaced often but I plan on making makeshift replacement out of sponge filter media and maybe a little carbon. It looks nicer than some others and the water flow is gentle, which my betta appreciates. Sometimes the removable top rattles but if I move it a bit it stops and then it's super quiet. ... show more
Reviewed in the United States on June 22, 2023 by jessica delgado

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