【Compatible with Catit PIXI Cat Water Fountain】 - The replacement filters are compatible with Catit PIXI cat water fountain. Dimensions: 3.31" x3.31" x 0.37" (L * W * H). Includes 12 pet fountain filters and 3 pump pipes , all packaged individually. 【All For Your Pet’s Health】 - The cat water fountain filter for Catit PIXI features Non-wovens fabric( isolating cat hair, food residue), Coconut shell activated carbon( filters micro particles such as sediment and rust to remove odors), Ion-exchange resin: (filters heavy metals, softens water quality). ensure your pets can drink clean and fresh water all day. 【Replace Regularly】To maintain the filtering effect, recommended to replace the filters every 2 weeks. If you have multiple pets, it is recommended to clean the fountain and change the filter more often. 【Warm Tips】In order to prevent activated carbon dust from falling into the water, soak the cat filters in water for 2 minutes and rinse for 30 seconds with clean water before use. 【Easy to Replace】 The cat water fountain are designed for effortless replacement, just insert the filter into the groove of the water pump. if any questions pls don't hesitate to contact us ,we will try our best to provide a perfect after-sales service for you. 12 Pack Pet Fountain Filters Compatible with Catit PIXI Cat Drinking Fountain, Replacement Triple Action Water Filter Keep Your Cat Healthy and Hydrated