[Compatible]This cat water fountain filter is compatible with a variety of cat fountains, the specific compatible fountain style, please check the product image list, before buying please confirm whether it is compatible with your cat fountain to avoid purchasing errors. [Triple Filtration System]The carbon filter of the cat fountain helps to remove odor, soften water, and improve the taste and quality of your pet's drinking water. Meanwhile, the filter sponge captures pet hair, dirt, and food particles, providing your pet with pure and healthy water. ATTENTION: Please soak the filter in clean water for at least 10 minutes before using. Replace every 60 days in smart mode and 30 days in normal mode.(The actual replacing time depends on filter status,and the led indicator will remind you when the filter need to be replaced.) Please reset the device after replacing filter. [Filter]The cat fountain filter helps purify the water and eliminate bad odors, while the pre-filter sponges blocks out any hair, dust or food debris. [Clean]Before use, soak and flush the cat water fountain filter with clean water,clean the filter every time you change the water of the cat fountain, and change the cat drinking fountain filter every 2-4 weeks. color: White Material: composite material Package Contents: 10 x filter elements Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.