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

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

Good product, Great Price!

I use a Veken Brand pet water fountain. The filter element matches it very well ，Based on what I see on the filter when I clean the fountain, they appear to be doing a fine job.

the cats love there fountain

good product easy to use