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: 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 service life of the pump and maintain water quality. Warm Tips: Please 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 shortening the replacement cycle. Improved Taste: Filters reduce chlorine taste and odor found in tap water, making it more appealing to cats. Quantity: 12PCS Color: As shown Material: Non-woven fabric + activated carbon Package Contents: 12 × Pet Water Fountain Filters Only the above package content is included; other items are not included. Note: Due to light reflection and differences in display screens, the color of the item in the image may vary slightly from the actual product. Measurement error allowance is +/- 1–3 cm.