8-pack Replacement Filters & Sponges For 4l Stainless Steel Cat Water Fountain. Upgrade Your Pet's Hydration with Our High-quality Cat Water Fountain Filters, Designed to Deliver Consistently Fresh and Clean Water. These Filters Are Perfectly Compatible with Stainless Steel Wireless Cat Water Fountains, Ensuring Seamless Integration and Superb Performance. Each Filter Boasts a Triple Filtration System Made from Activated Carbon, Ion Exchange Resin, and Non-woven Fabric. This Powerful Combination Effectively Removes Odors, Extracts Heavy Metals, and Softens Water, Providing Your Feline Friend with an Exceptional Drinking Experience. The Package Includes 8 Filters, Along with 8 Large Sponges and 8 Small Sponges, Which Work As Pre-filters to Capture Large Food Particles and Fine Hairs. This Helps Extend the Pump's Lifespan and Guarantees Long-lasting Performance. To Maintain Optimal Water Quality, It's Recommended to Replace the Filter Every 2-4 Weeks. For Households with Multiple Pets, a More Frequent Replacement Cycle is Advisable. Features: - Compatibility: Designed for Stainless Steel Wireless Cat Water Fountains. - Triple Filtration: Reduces Odors, Heavy Metals, and Softens Water. - Pre-filter Sponges: Captures Debris and Hairs, Extending Pump Life. - Regular Replacement: Suggested Every 2-4 Weeks for Ideal Performance. - User Tip: Immerse and Rinse Filters Before Initial Use for the Best Results..