Marineland 24-Pack Penguin Rite Cartridge, Size C

Need plenty of threse around. Have a large aquarium.

I buy aquarium supplied from these guys all the time . Price is right and fast delivery. Good product. My fish and I thank you.

As expected. Great price.

Way cheaper than pet smart and does the same job.

Great product but even this price is too high. Watch for the 6 pack as an add on product for about $5.50. Sometimes its there and sometimes not.

This is about the third time I have bought this product. Usually, I just get them on line for convenience, but this time I was ill and could not get out of the house. I was able to get every thing handled in about two minutes and then get back to bed. A top quality product delivered to my door at an excellent price. Im happy and my tank is crystal clear.

My fish are happy

This multi-pack of cartridges was an amazing value in comparison with our local pet supply store for the same product we have trusted for over a year now. They are easy to install into the filter and it is easy to tell when they need to be changed as well.

the only cartridge that fix in my filter, great price compared to my local fish stores. also, the fish love new filters (:

Easy to install and replace. Keeps the fish healthy!