[Compatibility] PETSTANDARD Replacement Filter Compatible with Whisker City Water Fountain. These are PET STANDARD branded filters.
[Premium 10 Pack Pet Fountain Filters] Pack of 10 Filters
[Compatible Pet Filter] Filter Measurements: 2.75" x 1.75" x 0.25"
[Premium Quality Filters] Double Filtration System: Composed of a cotton layer and activated carbon. 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 2 minutes then rinse thoroughly under running water before using. Change every 1 to 2 weeks in summer and 2 to 4 weeks in winter. If multiple pets are using the fountain, more frequent replacement will be necessary.