Tetra Carbon Filter - Large (2 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 toxins.
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.
Very Good price by Terrie from La Mesa, CA07/22/2012
I purchased these filters from EntirelyPets for the first time last month (usually purchase from local pet store), I am very happy with the service, price and delivery of this product through EntirelyPets. I will be getting ALL my pet supplies through them from now on.