Petmate Replendish & Mason Charcoal Replacement Filters

My dog sheds like crazy, so I was skeptical, but the charcoal layer here seems to grab all the fur before it hits the water bowl. They slip right into the Mason-style base with zero fuss, which honestly makes the monthly swap a two-minute job.

The polyester outer layer really does catch all the fur and gunk before it reaches the water—I'm not constantly rinsing out the bowl anymore. They slip right into the mason-style waterer and last a solid month without getting clogged.

These fit my Replendish waterer perfectly and the outer polyester layer really does catch all the fur and gunk before it gets into the bowl. Water stays noticeably cleaner between changes, and I just rinse the filter when it looks grimy.