Cat fountain replacement filter catches hair and debris, remove impurities and odor, keep the water tasting fresh.
Pack of 4 premium activated carbon filters made of premium activated carbon + cotton, size: 5.0*0.4inch
Replacement water fountain filters compatible with Hydration Cat Water Fountain
Frequency of replacement: recommend you replace your water fountain filter at least every month to ensure refreshing water for cats.
Due To Extremely High Demand: expect 2-4 weeks for it to arrive (to be safe).