Penguin 200 & 350 Refillable Media Cartridge

Its better than a bag! This easy-to-use cartridge snaps open and locks tight to prevent media spillage. Changes in seconds just add media and slide it in. Patented ribbed design ensures maximum water-to-media contact.

Fill with your favorite carbon, zeolite, or other filtering material. For Penguin 200 and 350 Bio-Wheel power filters only. Approximately 5-7/8" x 6-7/8" x 3/4".