Keeps your power or internal filter running like new
Easy installation and replacement
Course layer of floss removes large debris
Activated carbons remove odors
Activated Carbons also work against discoloration
All from Tetra, the brand you trust
Tetra is a name you can trust in the aquatics industry. With decades of proven performance and high quality products its no wonder Tetra is the go to brand for aquatics beginners and veterans alike. The Tetra Whisper Carbon Filter Replacement Cartridge promotes healthier fish by helping to remove discoloration, odor, toxins, and other impurities from aquarium water. These replacement carbon filters keep your Tetra Power filter or Tetra Whisper Internal Filter running like new. A course layer of floss removes larger debris while activated carbons are hard at work to remove odor and discoloration from the water. The set includes three ready to use filters. Easy Instructions for Your Carbon Filters: 1. Rinse filter cartridge under cool water to remove carbon dust. 2. Open lid and insert filter cartridge into filter. 3. Replace clogged filter cartridge when there is reduced water flow out of the filter. For best results change filter cartridge monthly or sooner as needed.