PS-PRM-12PK

What are these filters compatible with?

Petmate Replendish and Petmate Mason Pet Fountains.

Should I do anything with the filters before using them?

To prevent the activated carbon dust from shedding into water, please soak the filter in water for 5 minutes then rinse thoroughly under running water before using.

How often should I replace the filter?

Replace filter every 2 to 4 weeks.