The Marineland Penguin Refillable Filter Media Cartridge is a great alternative to standard media bags. This refillable cartridge frame has a patented ribbed design keeps the media of choice evenly distributed for maximum water-to-media contact. The snap open and lock tight design also ensure no media spillage for crystal clear and clean water at all times.
Refillable cartridge frame.
Excellent alternative to standard media bags.
Patented ribbed design keeps the media of choice evenly distributed.
Provides maximum water-to-media contact.
The snap open and lock tight design also ensure no media spillage for crystal clear and clean water at all times for a healthy environment for life to thrive in.
I use these Refillable cartridges in all my Marineland Hobs and they work great. I never buy the replacement filters. Instead I add pinky filter floss to one and Seachem Matrix to the other. I clean them as if they were filter cartridges but these versatile cartridges can be filled with anything from mechanical, biological or chemical filtration.
on Jan 13, 2019
This is easy to fill easy to clean and fast to clean and use and a great way to save money.
on Oct 10, 2018
My only complaint, I didn't find these sooner. I can customize what media I use. I purchased 2, one for sponge, one for activated carbon. Will continue to use, and recommend to all.
Allows customization of additional media
on Jun 5, 2018
I like the flexibility of these cartidges - I use granular media, based on what my water quality goals are, and place a cut to fit sponge in front for continued bio filtration. Also saves money on the pre-fab media. be aware of the side clasps that hold it together - the plastic can snap/crack.
on Jun 27, 2018
Using these is great if you prefer a carbon filter. I prefer to buy sponge and put that in place to contain more beneficial bacteria and filter the water with mechanical of the sponge.
save money and have more freedom
on Mar 25, 2018
With this cartridge, I can finally put what I want in the filter.
on Sep 27, 2017
The Penguin filter system came in the package with our aquarium. The filter system is great, but there is very little carbon in the cartridges, so we purchased this in order to add the amount of carbon that we want.
Great option for 350 filter
on Aug 9, 2017
These media cartridges make the 350 as versatile as the 400. Chewy has them at a great price but it's too bad they don't come with the filter. If you have a 350, buy these.
Easy to use
on Sep 23, 2016
Other than open them up and fill with what ever you like to use for media, you can save some bucks here.