[Compatible]The Cat Water Fountain Filter is compatible with 105oz/3L stainless steel cat fountain.These are Daoxuan cat water fountain filters. [Multiple Filtration]The pet water fountain filter is composed of activated carbon, non-woven fabric and it can filter hair, heavy metals, and improve the taste of the water,so that pets can drink clean and fresh water all day. [High Quality]The cat fountain filter provide clean, fresh water to your pet, which helps to increase water consumption. [Cleaning and Replacement]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 pet fountain filter every 2-4 weeks.<br><br>Material: carbon fiber colour: White<br><br>Package Contents: 4 x Replacement Filters<br><br>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.