Marineland Penguin Refillable Filter Media Cartridge, Penguin 200 & 350

he 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.

Fits Penguin Models 200 & 350