COMPATIBILITY: Crystal Pure cat water fountain filter is compatible for Catit water flower fountain filter and fresh & clear stainless steel cat dog pet dispenser. Diameter of hollow circle is about 1.5 inch/ 4 cm, diameter of outer circle is about 5.5 inch/ 14 cm.
TRIPLE FILTRATION SYSTEM: The sponge of cat filters for water fountain captures cat hair and debris, the ion exchange resin layer removes chlorine and metals, and the activated carbon removes bad tastes and odors to provide fresh, clean water for your pet.
EASY TO INSTALL: The cat fountain filter is easy to remove, it is recommended to change the filters every 2-4 weeks, so you can save money while taking care of your pet. However, if there are multiple dogs or cats using the fountain, more frequent changes will be required.
NOTE: To prevent activated carbon dust (which will not harm your pet) from being shed into the water, soak the filter in water for 2 minutes and rinse the filter for cat water fountain thoroughly under running water before use.