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Feature

Keeps water crystal clear
Ultra-activated carbon absorbs odors and discoloration
Dense, dual sided mesh catches debris and fish waste
Promotes healthier fish
6-Pack, small Whisper Filter Cartridges
Fits Whisper 1-3i filter system

Description

Tetra Whisper Cartridges make clean water simple and efficient. Ultra-activated carbon absorbs odors and discoloration while dense, dual sided mesh catches debris and fish waste to keep water crystal clear and promote healthier fish.