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Feature

2 packages with two cartridges each
Ready-to-use, easy to assemble, and easy to replace
Ultra-activated carbon removes waste particles, odors, and discoloration
Keeps water crystal clear
Fits Whisper in-tank Filter 3i

Description

For the ultimate in convenience, choose assembled Whisper bio-bag cartridges. Like the unassembled, the packages are color-coded, making it easier than ever to remember which size to purchase. They're ready-to-use and easy to replace. Filled with ultra-activated carbon, these cartridges remove waste particles, odors, and discoloration, keeping water crystal clear.