Designed specifically for Swan pet drinking fountains, our T-shaped suction cup water filters provide a seamless fit and optimal functionality. Each filter effectively traps pet hair and debris, helping to maintain clean drinking water for your pets. Effortless installation and secure suction: The cat fountain replacement cartridges feature easy-to-install suction cups that attach directly to the water inlet hose. This design simplifies setup and ensures the filter stays securely in place, preventing unfiltered water bypass. Recommended replacement schedule: To maintain optimal water quality, replace the filter every 2–4 weeks depending on usage. Regular replacement helps reduce impurities and ensures fresh, clean water. Preparation tips for best results: Soak the new filter in water for 5 minutes and rinse thoroughly before installation. This helps activate the filter media for effective performance from the first use. Specifications: Quantity: 6 pcs Color: White Material: Plastic Package contents: 6 x Filter Note: Light reflection and different displays may cause slight color variations. Measurement error allowed is +/- 1–3 cm.