Multi-layer filtration system ensures pet health: high-density filtration of fine particles ensures the purity and health of your pets drinking water. Pet healthy design: Make sure filter replacement is hassle-free and keep your pet fountain running. Recommended replacement cycle: In order to maintain the health of your pet, we recommend replacing the filter every two weeks. Changing the filter regularly can effectively extend the service life of the fountain, while ensuring that the water quality is always fresh. Preparation before use: Soak the filter for 5 minutes before use, followed by a thorough rinse for 5 seconds to remove any residue that may be present in the filter and ensure the water quality is safe for pets to drink. Color: As shown Material: plastic Package Contents: 2 x Filter Element 6 x Filter Cotton