Petmate® Fresh Flow Replacement Filter 2 Pack is a replacement for all Deluxe Fresh Flow Pet Fountain watering units. Replace filter every 60 to 90 days for usage by one pet. Charcoal filled filter keeps water fresh and clean.
Remove filter from package and rinse in clear water until all charcoal dust is removed. (This is normal for this type of charcoal filter.) Place filter in reservoir by sliding in diagonally.