Keep your furry friends hydrated with the Whisker City Fashion Gravity Waterer Filter Cartridge. This six-pack of cartridges is compatible with the Fashion model of the Whisker City water filter. Made with high-quality materials, these filters will ensure that your pets are drinking clean and fresh water at all times. These cartridges are easy to install and replace, making maintenance a breeze. The Whisker City Fashion Gravity Waterer Filter Cartridge is a must-have for pet owners who want to provide the best for their furry companions.