The Penguin Refillable Media Cartridges are better than media bags, the patented ribbed design keeps the media of choice evenly distributed for maximum water-to-media contact, and the snap open and lock tight design ensures no media spillage.
Can't believe I waited so long to buy these. I bought 2 of them, one to fill with charcoal and one I filled with poly fiber. No more of the expensive cartridges.
my only regret is that i had found these before...they are 100% better than the store bought cartridges....store bought cartrdiges hold about 2T of carbon...these will hold 3x that amount...and if you want/need filter media, you can order rolls of the blue material and cut it to size...way more cost efficient that typical cartridges
Love this Refillable Cartridge!! by rayupton from New Hope ,MN03/03/2013
Great Product and Shipping was very Fast!! Happy with Product
Money saver by Tim05/14/2014
This media cartridge is working great so far, using as a filter with marineland carbon and batting.
solved problem by Jefff from Cleve. Ohio01/13/2013
being able to refill on my own saves me a lot of money
Fabulous by Big Dan from Arlington Texas08/30/2013
These work great. Just put whatever filter media you want in it. Saves a lot of money on high dollar cartridges
Easy to Use by Eco Friendly II07/30/2012
Easy to fill with the media...works well and no more throwing all the plastic away as with the standard filters!!
Awesome Product by ItchyNissan from Federal way wa01/07/2012
I purchased this product so I would not have to buy the ones that are not refillable. I purchased 2 because I noticed 2 slots in the penguin 200 filter. The filter cartridge is great. It's sturdy, holds a lot of media and fits perfectly. The price was awesome and the shipping was really fast. I purchased them and got them on the 2nd or 3rd day. I can't remember but I think it was the second day. Great company to buy from. I was satisfied and you will be to.