Fountains Set of 6 automatic filters for cat fountains, with resin and activated carbon, replacement water filter for cats & dogs (square)

Wide Compatibility: This cat water fountain filter is suitable for drinking fountains. Dual-Action Filter: With its dual-action water softener filter using Ion Exchange resin and activated carbon, it can effectively filter out dirt. Design: Unique design that removes impurities and provides only fresh water for your cat. Easy to Use: Rinse the filter with water before use and replace it every 2 to 4 weeks to keep the water fresh. Healthier Drinking Water: The reverse osmosis filter of this pet water dispenser works layer by layer to block impurities in the water, remove heavy metals, soften the water, and effectively prevent urinary tract diseases in pets.