【Cat Water Fountain Filters】The *cat water fountain filter*are only compatible with Dockstream cat water fountain PLWF005/PLWF115/PLWF105. Keep your pet's water fresh and clean with standwme Water Fountain Filters specially designed for the Dockstream Cat Water Fountain. (please double check size before purchase) 【Vertical Filtration System】The *cat fountain replacement filters* is composed of a cotton layer,activated carbon and an ion exchange resin.They can filter hair, heavy metals, and improve the taste of the water so that pets can drink clean and fresh water. Also the pump can be protected at the same time. 【Easy to Install】Simply remove the old *Pet Water Fountain Filters* and insert the new one - no tools required for hassle-free maintenance.This *cat and dog Water Fountain Filters* is Individually packaged,to install,remove and replace. 【Important Note】Please rinse the filter 3-5 minutes thoroughly with water before use to remove the charcoal dust and to activate the resin, Please put the flat facade upward,to ensure best filtration! 【Replace Water Fountain filter】 Regularly changing filters to keep clean and prolongs the lifespan of your pet's drinking fountain.We advise you to replace the *catit water fountain filter* every 1-2 weeks, water pump also needs to be cleaned every 3 days to ensure the clean of drinkingwater,maintain high qualityeasy to ensure best filtration! 【100% Satisfaction Warranty】 Individually packaged and sealed to maintain high quality, 30 days money back. If you have any questions, please contact us any time! We will strive to help! Keep your feline friends hydrated with these premium replacement filters designed specifically for Petlibro water fountains. This comprehensive 24-pack ensures you'll have fresh filters ready throughout the year. Each filter features a multi-layer filtration system, incorporating cotton layers and activated carbon to remove pet hair, food particles, and impurities from your cats' drinking water. The filters fit perfectly with PLWF005, PLWF115, and PLWF105 Petlibro fountain models, making maintenance simple and hassle-free. Regular filter changes help maintain water clarity and encourage pets to drink more, supporting their overall health and wellbeing. The thoughtfully designed filters are easy to install and replace, helping you maintain a clean water source for your pets with minimal effort. For best results, replace filters every 2-4 weeks depending on usage and number of pets.