Tetra Whisper® EX Carbon Filter Replacement Cartridges Vet's Best Dogs love the natural flavor

Dogs love the natural flavor – and you'll love the fact that they're virtually odor free

1/2" Wire spacing prevents escapes

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

Multi-stage filter pumps out an astounding 925 gallons (3500 L) of water per hour

Tetra Whisper® EX Carbon Filter Replacement Cartridges Vet's Best Dogs love the natural flavorNow 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.