Set of 8 stainless steel cat water fountain filters for automatic pet water dispenser, including carbon filter and sponge foam filter

Compatibility: Compatible with 2L and 3L stainless steel pet fountains, and most cat and dog water fountains. Healthy for Pets: Clean water keeps the drinking fountain clean, which is essential for pet health. Superior Quality: The cat fountain filter and pre-filter sponges are individually wrapped and sealed to maintain superior quality. Note: Please soak the filter in water for 2 minutes and rinse it thoroughly under running water before use. This prevents activated carbon dust (which is harmless to your pets) from getting into the water. Recommendation: Please change the filter every 2 to 4 weeks, depending on the number of pets using the fountain.