About this product

【Compatibility】1 replacement filters, 1 filter sponges and 1 pump sponges, perfectly for 135 fl oz/4L wilreless cat water fountain;

【 Triple Filtration System】water fountain filters come with 3 layer filtration system, high density cotton can fliter hairs and debris, 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.

【Filter Sponge& Pump Sponge】High density pre-filter sponge can further filter out impurities, fully leverage the filtering effect; High density pump sponge can filter impurities, preventing them from entering into water pump, it can help extend pump life.

【Replace Filter Regularly】Suggest replacing the filter and sponge every 2 to 4 weeks; Please change them more often if have multiple pets.