Marineland Magnum 350 Bonded Filter Cartridge, 3 count

By Marineland
Rated 4.9 out of 5 stars
$7.72Chewy Price
$14.39Chewy Price
$7.33Autoship Price
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FREE 1-3 day delivery on first-time orders over $35

About This Item


  • Routine media replacement ensures optimum filter performance at all times.
  • Custom designed for the Magnum 350 Micron Cartridge and Carbon/Media Container.
  • Maintains aquarium water quality with efficient mechanical and chemical filtration.
  • Reduces the accumulation of waste and dirt particles that would prematurely clog the filter.
  • Helps extend the cartridge life.

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Compatible Products

Keep your system working smoothly with Marineland filters.

Frequently Bought Together

Marineland Black Diamond Activated Carbon Filter Media, 40-oz jar
Rated 4.6923 out of 5 stars
$30.99Chewy Price
Total Price: $46.70

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ReviewsWrite a Review

Rated 4.9 out of 5 stars
10 Ratings
Would recommend to a friend

10 Customer Reviews

Rated 5 out of 5 stars
By Laura on Sep 15, 2022

works well with my HOT filter.

these are nice and thick and last awhile. Will purchase again.

Rated 5 out of 5 stars
By Fishing on Mar 4, 2022

Best Buy any where

Item as described. Excellent product, the only bump in the road was the driver DIDN'T leave the box in front of my door as per instructed. This was my first purchase from CHEWY.

Rated 5 out of 5 stars
By Motheroffuzzies on Apr 9, 2021
Top 100 Contributor

Reliable product. Always performs as expected.

I've been using these in my aquariums for many years and have never been disappointed. They do an excellent job of keeping the water clean.

Rated 5 out of 5 stars
By Donthefishbreeder on Mar 6, 2021

Perfect Fit

These filters are the original! They work perfectly. I love the way they clean up a 55 gal. tank in no time. Thank You Chewy

Rated 5 out of 5 stars
By David on Nov 19, 2020

El filtro insertos were correcto.

Yep, got the right ones. Okay, here are some more characters. . . . . .

Rated 5 out of 5 stars
By Janice on Sep 2, 2020

Great price!

Usually buy these in local pet store. Even with delivery charge, much better price with Chewy.

Rated 5 out of 5 stars
By Fishy on May 15, 2018

Great Service

Great filters. Chewy offered the best price for these filters and they were very quick in shipping them. Will never get our filters anywhere else.

Rated 4 out of 5 stars
By LouLou on Mar 15, 2018

Correct Product but shipping box was damaged and sent to wrong address

A lady called my sister to state that she was legally blind and accidently opened my mail. It was delivered to 1505 instead of 1606...when I picked it up, the box had damaged to one side - as if it had something heavy drop on that end. The product that I ordered was a very light product and thankfully not breakable. The product was in perfect condition even though the box was damaged and it was sent to the wrong address. Which of course is more the delivery company's fault and not's issue.

Rated 5 out of 5 stars
By millbe on Jan 7, 2018

works good

does as it should and is better than any other filter I think on the market ]

Rated 5 out of 5 stars
By Jackie68 on Oct 18, 2017

Does its job.

I have used these filters as long as I have been using the 350 Magnum and have no problems. I found that I can rinse them thoroughly and use them at least 2 times and I have a 100 gallon tank.