【5 Layers Filtration】: Improved and enhanced materials and struction, achieve a better filtration. It was made of sponge, activated carbon, medical stone, ion exchange resin and non-woven fabric.
【How To Use?】: You can rinse or soak the filter 5-10 minutes before use, it is good for working more effectively.
【Healthy & Hydrated】: The filter helps your pets drinking fresh water from the pet water fountain, and avoid your pets getting sick.
【Application】: Compatible with NPET DF10/DF30 dog water fountain
【8-Pack in one set】: 8 packs of filters and pump sponges are enough to replace for 16-32 weeks normally. It is good for keeping water fresh.