• CompatibilityRplacement filters & pre-filter sponges set, perfectly for 84oz/2.5L, blue and grey automatic cat water fountain.
• Triple Filtration SystemCat water fountain filters come with 3 layer filtration system, high density cotton non-woven fabric can fliter hairs and residue, keep water clean; Activated carbon can remove chlorine and odor, purify and freshen water; Ion exchange resin can filter heavy metals and improve the taste, can keep water clean, fresh and tasty all day, and reduce the risk of urinary tract infections.
• Pre-Filter Sponges High density pre-filter sponge around the pump, can better filter impurities, preventing them from entering into water pump, it can help extend the pump life.
• Replace Filter RegularlySuggest replacing the filter every 2 to 4 weeks and replace the sponge every 4 to 8 weeks; Please change it more often if have multiple pets.
• Warm TipsBefore replacing the filter, please soak the filter in water for 2 minutes and then rinse it thoroughly under running water, which will prevent carbon dust from shedding into water, keep water clean.