Keep pet's drinking water clean: the foam filter prevents food, hair and other large debris from being circulated around the fountain, providing your pet with cleaner and healthier water. Enhance overall filtration: this pet fountains replacement filter can keep your pet hydrated, an easy way to improve their health, drinking clean and fresh water has many advantage for cats and dogs, add more happy moments, you and your pet can enjoy playtime more and live happy together. Easy to replace: easily removes for pump cleanings and foam filter replacement, we suggest to change every 2-4 weeks to maintain your pet water fountain and keep the water fresh and clean. Wide application: this pet fountains foam is compatible with Drinkwell stainless steel 360, Lotus, Avalon, and Pagoda pet water fountains, and it can help extend the life of your water fountain pump. Package includes: you'll get 24 pieces replacement foam filter, we have upgraded the thickness and density of the product, and changed the vacuum packaging into boxes, so that you can have a better experience. Colour: white Material: sponge Size: about 7.5x7.5x1cm Package Contents: 24 * replacement foam filters Only the above package content, other products are not included. Note: Light shooting 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.