Penn-Plax Cascade 300 Power Hang-On Filter, 100-gal

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$49.99 (-46%) Chewy Price
$92.99 List Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
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Arrives between Jan 25 and Jan 31
Free 365-day returns

Pay in 4 interest-free payments of $12.50. .

About This Item

Details

  • The Penn-Plax Cascade 300 Power Hang-On Filter delivers 300 gallons of water per hour.
  • Adjustable flow knob allows for customized water flow.
  • The hang-on design is constructed for safe mounting.
  • Uses disposable, double-sided media cartridges with activated carbon and poly fiber floss to remove particulates, chemicals, toxins, discolorations, and odors.
  • Features a Bio-Sponge cartridge for beneficial bacteria colonization and a Bio-Falls system for enhanced oxygenation and removal of ammonia and nitrate.

Size

Frequently bought together

Questions & Answers

1 Customer Questions

What size, type replacement cartridge does this take?

Answer by LAJr • Feb 01, 2025
Penn-Plax Cascade 300 GPH Hang On Replacement Media for The Cascade 300 Filter, 3 Pack - Amazon has this
Reviews
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4.1
Rated 4.1 out of 5 stars
44 Ratings
Terms & Conditions

24 Customer Reviews

Rated 1 out of 5 stars
By Maria on Dec 14, 2025

I still highly recommend Chuy’s

The price doubled since I bought them six months ago, this is not the fault of Chuy’s but it is our current administration in America that is to blame

The price doubled since I bought them six months ago, this is not the fault of Chuy’s but it is our current administration in America that is to blame

Rated 3 out of 5 stars
By Gary on Dec 19, 2025

Good filter for my 125 gallon tank

I thought the delivery was too long and kept getting changed from one location to another so I could walk to pet store to get faster

I thought the delivery was too long and kept getting changed from one location to another so I could walk to pet store to get faster

Rated 1 out of 5 stars
By Erin on Sep 29, 2025

A bad batch?

Ordered this, had it replaced THREE times. Every one of them was broken. The blue plastic part arrived shattered or cracked each time. Maybe a manufacturing issue,

Ordered this, had it replaced THREE times. Every one of them was broken. The blue plastic part arrived shattered or cracked each time. Maybe a manufacturing issue, but the packaging was terrible. Until this problem is resolved with the company/packing facility, don't waste your time or money!

Rated 1 out of 5 stars
By Janet on Sep 27, 2025

New filter had chip in plastic and leaked.

I had this new filter stored in my cabinet, still in the shipping box. I did a major water change on my tank yesterday, Friday, Sept. 26th and decided to use this

I had this new filter stored in my cabinet, still in the shipping box. I did a major water change on my tank yesterday, Friday, Sept. 26th and decided to use this new one. All was going g

Rated 5 out of 5 stars
By Jean on Oct 4, 2025

Quiet running

My filter was down for five days before I received this filter so my tank was murky, after running the new filter for 24 hours my tank was crystal clear again.

My filter was down for five days before I received this filter so my tank was murky, after running the new filter for 24 hours my tank was crystal clear again.

Rated 1 out of 5 stars
By Emily on Nov 22, 2025

Lacking Longevity

Had this item a little less than 8 months and motor went out

Had this item a little less than 8 months and motor went out

Rated 5 out of 5 stars
By Linda on Sep 20, 2025

For a 8" comet goldfish

I've used this for many years it's the only system I come back to, Every time I get a tank I always but this.

I've used this for many years it's the only system I come back to, Every time I get a tank I always but this.

Rated 2 out of 5 stars
By Kenneth on Jan 19, 2026

I ordered two items and only one delivered.

For our fish aquariums.

For our fish aquariums.

Rated 1 out of 5 stars
By Brandi on Feb 16, 2025

Horrible

Worked at clearing the cloudy water only for the first couple hours after installation. Has not worked at clearing the water since. Rewatched the videos that lead

Worked at clearing the cloudy water only for the first couple hours after installation. Has not worked at clearing the water since. Rewatched the videos that lead me to this tank and saw in the comments that the ppl were paid for their promotions and immediately changed to a diff filter tank bc it does Not work. They put money before the wellbeing of the animal. 0 stars.

Rated 5 out of 5 stars
By Kimberley on Apr 1, 2025

The price and gallons

The sale price makes this item stand out. We do YouTube videos about our fur, fins, and feathers 4 fun family. Getting ready to start featuring our supplies!

The sale price makes this item stand out. We do YouTube videos about our fur, fins, and feathers 4 fun family. Getting ready to start featuring our supplies!