【3 Layers Filtration】: Quality materials and struction, achieve an effective filtration. It was made of sponge, activated carbon and ion exchange resin.
【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
【4-Pack in one set】:4 packs of filters and pump sponges are enough to replace for 8-16 weeks normally. It is good for keeping water fresh.
