12 Packs PETLIBRO Replacement Filters: super-sized family pack that lasts up to half a year. For multi-cat households, Recommend replacing filters more frequent. Keep every kitty drinking clean, fresh water so they stay better hydrated and healthier.

Compatible exclusively with PETLIBRO cat water fountain Dockstream PLWF106/PLWF116/PLWF105/PLWF115/PLWF005/PLWF305 (2.5L-3L).Off-brand cat fountain filters may cause leaks/pump failure in PETLIBRO automatic water dispensers.

Fresh water in every drop: 4-Layer Filtration in Cat Fountain (1) Non-woven fabric traps hair and debris in your pet water fountain; (2) Activated carbon neutralizes odors; (3) Ion exchange resin softens water and removes heavy metal ions; (4) Foam filter extra protection by catching fine debris;

Safe Hydration for Your Pets: The PETLIBRO water fountain filter made from food-grade materials to ensure safe, clean hydration and give you peace of mind. New cat water filter and Fresh water increase pet hydration, reducing urinary risks.

Easy to Swap and Maintain: No tools needed when changing cat water fountain filter - soak 5 mins, rinse 30 secs, swap in seconds. For optimal Use, replace the PETLIBRO filter every 2 weeks and clean the fountain weekly. Keeping the cat fountain filter clean for healthy drinking.