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About This Item

Details

  • Captures large particles and debris for effective mechanical filtration.
  • Custom-made to fit perfectly inside the filter chamber to prevent debris bypass.
  • Helps prevent harmful ammonia and phosphate build up in your aquarium by eliminating fish waste, uneaten food, and other organic material.
  • Ideal pore size for efficient water flow, less clogging and long-lasting filtration.
  • For freshwater, marine and reptile environments.

Instructions

Questions & Answers

3 Customer Questions


What size does this fit?

Answer by ChewyMar 14, 2024
This media is specifically designed for the Fluval U2 Underwater filter.

Can I use these foam filters in cat drinking water fountains?

Answer by ChewySep 15, 2020
This filter is only compatible with Fluval U2 Underwater Filters.

What are the dimensions?

Answer by ChewyApr 06, 2018
The dimension of the pad is 5 1/4 inches in length, 2 1/4 inches wide, and 3/8 inches thick.
4.5
Rated 4.5 out of 5 stars
33 Ratings

8 Customer Reviews



Rated 5 out of 5 stars
By Christine on Nov 21, 2025

Good filter for betta tank

I have a beta premium tank in this filter is perfect for the filter cartridge that's why I bought it thank you

I have a beta premium tank in this filter is perfect for the filter cartridge that's why I bought it thank you


Rated 3 out of 5 stars
By kathy on Apr 29, 2025

Wrong size

Needed a full size for my filter.

Needed a full size for my filter.


Rated 5 out of 5 stars
By Aaron on Jan 18, 2025

Good value

It's nice that Chewy carries my aquarium needs. Best price too!

It's nice that Chewy carries my aquarium needs. Best price too!


Rated 5 out of 5 stars
By Nancy on Jan 12, 2025

I like the product.

I like how dependable Chewy is for me!

I like how dependable Chewy is for me!


Rated 1 out of 5 stars
By Gressy on Aug 27, 2022

Do not order

Do not order these from chewy the box came smashed and the filters were filthy dirty I couldn’t even use them

Do not order these from chewy the box came smashed and the filters were filthy dirty I couldn’t even use them


Rated 5 out of 5 stars
By Chris on Aug 29, 2021

overall good transaction

Items were as described and shipping was quick. Price was reasonable and comparable to other sites.

Items were as described and shipping was quick. Price was reasonable and comparable to other sites.


Rated 2 out of 5 stars
By Starrii on Jan 21, 2018

Very flakey

I put 2 of these in my filter. During maintenance I gently squeeze them into a clear plastic pitcher. After a month or two I noticed flakes in the pitcher. The sponge

I put 2 of these in my filter. During maintenance I gently squeeze them into a clear plastic pitcher. After a month or two I noticed flakes in the pitcher. The sponge became very brittle and was slowly flaking away. It hadn't fallen apart, it was still a whole sponge but slowly breaking down.


Rated 5 out of 5 stars
By Fatdaddy on Sep 13, 2016

Quality

Fluval makes things that work correctly, efficiently & most importantly with the best quality.

Fluval makes things that work correctly, efficiently & most importantly with the best quality.