PK.ZTopia 8-Pack Cat Water Fountain Filter, Pet Fountain Filters, Replacement Filters for 84oz/2.5L Automatic Pet Fountain Cat Water Fountain Dog Water Dispenser

They’re very easy to install. There actually is no noise with the filters. The fountain is just the sound of running water. My cats love their fountain!

good product

After comparing several kinds, I finally decided to buy this. This special replacement filter can effectively filter the floating debris, hair, food residue and other impurities in the water, while the activated carbon can remove the odor in the water. A chemical gas that emits an unpleasant smell, allowing cat to drink fresh and delicious filtered water.

Very easy to use Just set filter in place Have 2 cats who are drinking more frequently than they did when water was just in a bowl

They work like intended. Not a bad price for replacement filters