• Replacement Pet Water Fountain Filters Compatible with WF050 Cat Fountain, Cat Dog Water Fountain Replacement Filter Activated Carbon Filters, 12 Packs
• [Compatibility]This Cat Fountain Filter Replacement is fit well with WF050 & WF100 transparent fountains.
• [Premium Quality Filters] Triple Filtration System: Composed of a Sponge Layer and an ion exchange resin Layer. Effectively to filter hair, heavy metals, keeps water fresh and improve the taste of the water.
• [Frequency Of Replacement] To prevent the activated carbon dust from shedding into water, please soak the cat fountain filter in water for 10 minutes then rinse thoroughly under running water before using. 1 to 4 weeks in summer and 2 to 6 weeks in winter. If multiple cats are using the fountain, more frequent replacement will be necessary.