Upgrade your aquarium's filtration system with the Tetra Whisper Bio-Bag Cartridge Medium 3 pk, designed specifically for all water types up to 60 gallons. This internal box filter is crafted by Tetra, a trusted brand in the industry.

The Tetra Whisper Bio-Bag Cartridge Medium 3 pk is made in the United States and comes with free shipping. Its unique design allows for easy installation and maintenance, ensuring that your aquarium stays clean and healthy. Add this filter to your pet supplies and fish & aquariums categories today.