Cat Water Fountain Filter Replacement Pet Drinking Fountain Filters Compatible with 135 fl oz/4L Cat Water Fountain-12 Set Filters with Sponges

【Compatibility】These pet water fountain filters are compatible with 135 fl oz/4L cat water fountain. 【Multiple Filtration Systems】Non-woven fabric can filter pet hair and fine debris, activated carbon can get rid of the odor of the water, the role of pure water, ion exchange resin can filter heavy metals, improve the quality of water, keep the water clean and fresh. 【Further Water Purification Function】Pre-filter sponge can further filter out impurities to avoid impurities entering the pump, thus extending the life of the pump. 【Replace Regularly】Please soak in water for 5 minutes and rinse well before use.For your pet's health, we recommend changing the filter every 2-4 weeks.If there are multiple pets, they will need to be replaced more frequently. 【Our Services】We support 12 months return and exchange, if you have any questions about the product, please let us know, we will reply within 24 hours!