8PC Water Fountain Filters Resin Activated Carbon Fountain Replacement Filter for 2L Cat Water Dispenser Dog Pet Drinking Filter Filter Cat Fountain Set: Package content: 4/8/12/16 Replacement Fountain Filter, which is compatible with the 2.5-liter stainless steel cat fountain and the 2-liter water play fountain. Strong absorption capacity: Each drinking fountain filter is made of activated carbon, ion resin and high-quality non-woven fabric. The activated carbon can effectively filter out impurities in the water; Meanwhile, the food grade resin and filter cotton can effectively remove sediment, particles, hair, odors and other substances, so that your pet can drink water safely. Take care of your pet's health: Dogs and cats that drink water for too long or contain too many metal ions will cause your pet not to drink water or get urinary stones. This fountain filter improves and softens water, prevents urinary tract diseases and lets your pet drink water. Easy to use: Our replacement cat fountain filters are individually packaged so they can be easily removed. Please soak the filter in water for 2 minutes before use, then rinse thoroughly under running water, followed by a flat surface facing up to ensure optimal filtration! Warm Tips: 1. Please replace the water filter every 2 to 4 weeks depending on the number of pets using the water dispenser. 2. To ensure the quality of your pet's drinking water, it is recommended to carefully clean the dispenser once a week, including the housing and the inside of the water tank. _x000D_