![Tetra Whisper Bio-Bag Cartridge with Stay Clean Technology, Medium Size Tetra Whisper Bio-Bag Cartridge with Stay Clean Technology, Medium Size](https://cdn11.bigcommerce.com/s-xfu1s3ki5p/images/stencil/500x659/products/16494/10914/5c763452-1c69-464c-ac2d-b24261980c7e_1.adfa1da58f5d758a3078a8daea88b3aa__67472.1639506356.jpg?c=1)
Tetra Whisper Bio-Bag Cartridge with Stay Clean Technology, Large Size
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$4.99 - $19.99
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- REPLACEMENT FILTER CARTRIDGE: Keeps aquarium water clear – removes odors and discoloration and helps reduce buildup on aquarium glass.
- STAY CLEAN™ TECHNOLOGY: By maintaining healthy pH levels, creates easier maintenance for healthier fish.
- FITS TETRA® WHISPER® AQUARIUM FILTERS: Color coded to make it simple to remember which cartridge size to purchase.
- CONVENIENT: Pre-assembled, ready to use and easy to replace.
- USAGE: Change monthly or sooner if needed.
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