Petmate, Fresh Flow Replacement Charcoal Filter, 2 pk

Petmate® Fresh Flow Replacement Filters use charcoal to keep your pet’s water fresh and clean. The charcoal filter removes odors to keep water fresh and provides naturally cool and oxygenated water. Encourages your pet to drink more water and stay hydrated while helping to extend the life of your fountain. Works with all Fresh Flow® fountains. Filters should be replaced every 30 days.