【Perfect Match】Compatible with Plastic Cat Water Fountain (F2). Filters from other brands may not fit the cat water fountain due to inconsistent sizes. 【Premium 4 pieces】This product contains 4 pieces of filters, each piece of filter is individually packaged, which effectively guarantees the tightness of each piece of filter. 【Triple filtration system】Consists of a layer of cotton wool, activated carbon and ion exchange resin. Effectively filter hair, heavy metals, impurities, keep water fresh and improve water quality. 【Protect pet health】Helps reduce the risk of infection urinary tract; it is very important for the health of pets. 【Recommendation】 Please rinse the filter before use. Replace the filter every 2-4 weeks.
