Compatibility: ONLY compatible with PETLIBRO Dockstream cat fountain PLWF105 / PLWF115 / PLWF005. If you are unsure, please check the dimensions of the product. Easy to install and clean: These cat fountain filters are easy to remove and replace, saving you a lot of time when cleaning! Please soak the cat fountain filter and sponge in water for at least 3 minutes before use to stimulate the best filtration effect of the cat fountain filter, and then rinse thoroughly with running water. This will keep the cat water fresh for a longer time. Healthy filter ingredients: The triple circulation filtration consists of activated carbon, ion exchange resin and non-woven fabric. Together, they effectively filter out impurities such as hair and heavy metals, while improving the taste and quality of the water. Premium replacement pet fountain filters help keep your pets healthy and hydrated by providing them with clean and fresh water all day long. [Premium 12-Pack Pet Fountain Filters] 12-pack premium replacement pet fountain filters and 10-pack pre-filter sponges packaged and sealed to maintain high quality. Enough supply for 3 to 12 months of use. Replace the pre-filter sponge every 2-4 weeks. [Filter Sponge & Pump Sponge] High-density pre-filter sponge can further filter out impurities and fully utilize the filtration effect; High-density pump sponge can filter impurities and prevent them from entering the water pump, which can help extend the life of the pump. Product Benefits: Removes impurities Color: Photo color Material: cotton Package Contents: 12 x Replacement Filters 12 x Pre-filter Sponges The above package contents only, 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 +/- 1-3 cm.