28 pcs pet Accessories:4 pcs Cat Water Fountain Filter & 24 pcs Replacement Foam FiltersKeep 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 stainless steel 360, Lotus, , and 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.UNIQUE FILTER SYSTEM: The drinking fountain provides filtered, chilled and circulated water. The drinking fountain is equipped with a water pump that provides circulation and filtering through a ionic resin and activated carbon filter. The filter system filters all hair, food remains. Provides fresh cleaning water to your lovely pets.PROMOTES HEALTH & HYGIENE: Cats prefer to drink fresh water and find it attractive when a source of flowing water is available. In nature, flowing water is much fresher than standing water. In addition, flowing water ensures a constant water circulation and a lot cleaner water.MODERN DESIGN: 2.5L/0.66 Gallon large capacity is great for small to medium pets The material is PP Resin and 100% safe for your beloved pet. The transparent water level window clearly indicates the water level and reminds you to replenish water in time. Adapter with 1.5m USB cable easy to use.ULTRA SILENT PET FOUNTAIN: The drinking fountain is equipped with a very quiet water pump, this is nice and safe for your pet and no annoying buzzing noise for you (measured below 40dB). In addition, the water pump has a very low energy consumption of only 2W.Item Type: Water BottlesType: Dogscolour:whiteMaterial:PP + spongeDrinking machine core size:Height: 7.5cmSize: about 7.5x7.5x1cmPackage Contents:4 * Drinking machine core24 * replacement foam filtersOnly the above package content, other products are not included.Note: Light 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.