Filter Packs for Pet Fountain NKHEB01.

It is recommended to change the filter every 1-2 months.
Filter consists of activated carbon and resin for clean and reusable water.

For single, filter can last to 2 months.

Pack of 6 can last for 6 months to 9 months.

Pack of 12 may last for 1+ year, depending on refill frequency.

Pet owners may choose not to replace or change the filters, however, do ensure water is clean at all times. Instead, you may changeout the water in the fountain every week.