Improved Hydration for Pets: The PetSafe Drinkwell Replacement Carbon Filters support a better hydration choice by delivering cleaner water access every day Superior Purification Power: Each activated carbon filter uses six compartments and dual-density pads to trap debris, improve taste, and reduce odors for long-lasting purity Simple & Reliable Performance: Enjoy easy swap replacement with this universal filter replacement that works with Drinkwell Outdoor Dog, Zen, Mini, and more 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