The filters don’t fit, neither the foam filter nor the carbon. The carbon filter does not fit in into the filter housing. Misses by a 32nd of an inch. I read in another review where someone else had the same problem, so Petsafe must be aware of this problem. The foam filters don’t in any way resemble the one that came with the unit. The ones I received are half the size and extremely cheap compared to the one it’s supposed to replace. Obviously, a money saving move on the company’s part. So all in all it’s a bust. I will try contacting support or customer service to get a refund. We’ll see what kind of company this. And yes, I bought and installed the filters correctly. This review is in regards to the PWW00-16468
Drink well 2 Gallon.