Designed specifically for Swan pet drinking fountains, our T-shaped suction cup water filters provide a seamless fit and optimal functionality. Each filter is crafted to effectively trap pet hair and debris, maintaining clean drinking water for your pets. Effortless Installation and Secure Suction: Our cat fountain replacement cartridges are engineered with easy-to-install suction cups that attach directly to the water inlet hose. This design simplifies installation and secures the filter in place, preventing any bypass of unfiltered water. Recommended Replacement Schedule: To maintain optimal water quality, we advise replacing the filter every 2-4 weeks, depending on usage. Regular replacement helps prevent build-up of impurities and ensures that your pet's water is always fresh and clean. Preparation Tips for Optimal Use: For best results, we recommend soaking the new filter in water for 5 minutes and rinsing it thoroughly before installation. This pre-use preparation helps activate the filter media, ensuring effective filtration from the first use. Specification: 6PCS Color: White Material: Plastic Package Contents: 6 x Filter Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement allowed error is +/- 1-3cm.