Petmate Fresh Flow Replacement Charcoal Filter

I’ve been using these replacements for two months now, and my cat’s water bowl stays noticeably fresher between cleanings—the charcoal really pulls the stale tap-water smell out. The filters drop right into the reservoir with no fuss, and the water tastes clean enough that I actually refill more oft

My last filter lasted over a month and our water bowl still smells completely neutral every time I refill it. The charcoal really does pull out that stale, doggy taste that plastic bowls usually pick up.

The charcoal does exactly what it should—tap water smells neutral after a few days, and my cat stopped turning her nose up at the bowl. Filters drop in without fuss and last a good month before I notice any difference.