Frequently asked questions
What's included in the 6-pack replacement filter set?
Each set includes 6 multi-stage replacement fountain filters and 6 pre-filter sponges. The water fountain and pump are not included.
Which DeftPet water fountains are these filters compatible with?
These replacement filters are designed for compatible DeftPet 12L, 15L, 18L, 21L, and 24L water fountains. Please check your existing filter shape and fountain model before ordering.
How often should I replace the water fountain filter?
We recommend replacing the main filter approximately every 1–3 weeks. More frequent replacement may be needed in multi-pet households or when filters collect more hair and debris.
How long does a 6-pack of filters last?
With six replacement filters included, this set provides approximately 1.5–4.5 months of routine use when filters are changed every 1–3 weeks. Actual usage depends on your pets and water conditions.
How should I prepare a new filter before installation?
Soak the new filter in clean water for 3–5 minutes, then rinse it briefly before installing it in the fountain. Follow your fountain's User Guide to ensure the filter is positioned correctly.
What do the multi-stage filters help remove?
The filters combine non-woven fabric, activated carbon, and ion exchange resin to help capture pet hair and debris while reducing unwanted tastes and odors.