Whisper Medium (Junior) Bio-Bag Filter Cartridges

Authentic Whisper Filter Bio-Bag disposable cartridges. Each cartridge consists of a plastic frame that is surrounded with a white filter bag that is filled with activated carbon.

The plastic frame is specially designed to increase aerobic bacterial action by up to 200%. The fluffy filter bag is designed to remove larger particles from the aquarium water. The ultra-grade carbon is of the highest quality and will help to move odors and organics from your tank water.

Fits the Whisper PF10, E, J, 10 , 5-10, Viquarium, MicroFilter, 10i, and Mini models. Also fits the Top Fin 10 and 15 filters sold exclusively by Petsmart. Each cartridge measures approximately 3-1/4" x 5-1/2".