Ensure Fresh Hydration: The Ion-X Pet Fountain Filters provide pets with clean fresh water using dual filtration technology and a 4-pack for pet fountains Promote Better Health: This cat water fountain filter removes bad tastes and odors with an activated carbon water filter and an ion exchange pet water filter Simplify Daily Care: Enjoy easy DIY installation with this replacement filters pack, designed for a hygienic solution and up to 4 months of long-lasting filtration Global Mission, Local Care: With U.S. roots and worldwide reach, PetSafe delivers vet- and trainer-recommended solutions and exceptional customer support to create fields of joy for pets 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families