Tetra Whisper EX Carbon Filter Replacement Cartridges, Large 4 ct

Now a Carbon Filter as innovative as the Whisper® EX Filtration System it's designed to fit. Tetra Carbon Filters' layers of multi-density floss effectively trap even the smallest particulates while activated carbon rapidly eliminates odor, discoloration, impurities, and toxins.

The result? Water that's clear, healthy, and polished.

Fits:
Medium EX - Whisper EX20
Large EX - Whisper EX30, EX45 & EX70