Tetra Whisper® EX Carbon Filter Replacement Cartridges Vet's Best A cat’s digestive system works

A cat’s digestive system works best when it receives the same food each day

Treats multiple skin conditions such as dermatitis

it is time for a change

Evenly apply entire contents of the tube along the top of the dog's back

Tetra Whisper® EX Carbon Filter Replacement Cartridges Vet's Best A cat’s digestive system worksNow 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 Instructions: Coarse layer Removes larger particulates.