Fountain Filters & Refills

Shop replacement filters and filtration components for compatible pet water fountains. Compatibility matters: match the replacement pack to the exact fountain family before ordering.

Find the right replacement filter

3.2L USB fountain: Use the 3-pack replacement filters for the 3.2L USB pet water fountain and select the style that matches your fountain.

3.2L cordless sensor fountain: Use the 6-pack replacement filters for the 3.2L cordless sensor pet water fountain.

Other compatible fountains: The replacement filter & sponge set is a separate compatibility family. Compare the filter shape and size with your existing fountain before ordering.

How often should a pet fountain filter be replaced?

There is no single replacement interval for every fountain. Follow the instructions for your model and consider water conditions, number of pets, visible debris and reduced flow when deciding when to change a filter.

Need a fountain? Browse pet water fountains, read our filter replacement guide, or visit the FAQ.