Here you will find all the Hagen Catit & Dogit drinking fountain replacement filters. Please see the full product description for a list of compatible fountains.
All Catit filters should be replaced every three weeks or as soon as there are signs of other foreign substances on it (dirt, bits of old food, hairs, etc). Filters may need to be changed on a more regular basis depending on the environment, water quality or if it is serving several animals.