Compatible: These filters are compatible with cat water fountains for CHEERBLE, providing a perfect fit and optimal performance to ensure pets enjoy the best drinking experience. Triple Filtration: Each pet fountain filter contains activated carbon, ion exchange resin, and non-woven fabric to eliminate odors, remove heavy metals, and soften water. Clean Regularly: Clean the pet drinking fountain pump replacement every one week to extend the pump's service life and maintain water quality. Warm Tips: Rinse the filter thoroughly before use to prevent carbon particles from entering the water, ensuring your pet receives clean and fresh water. Regular Replacement: To maintain effective filtration, replace the filter every 2–4 weeks. For households with multiple pets, consider replacing more frequently. Improved Taste: These filters reduce the taste and odor of chlorine in tap water, making it more appealing to cats. Quantity: 16PCS / 12PCS / 8PCS Color: As shown Material: Non-woven fabric + activated carbon Package Contents: 16 * Pet Water Fountain Filters / 12 * Pet Water Fountain Filters / 8 * Pet Water Fountain Filters Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.