Tetra Carbon Filter - Large (4 pack) 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
The result? Water that's clear, healthy, and polished.
Carbon Filters come ready-to-use and include one patented Timestrip change indicator
for each Filter.