Bests & Worsts Reviews from Amazon

While these do fit the Drinkwell, they are vastly inferior to the name brand ones (and I don't often say that). They are almost completely devoid of charcoal. What is the point of getting a charcoal filter that has very little charcoal. Because they don't have as much charcoal, I am noticing a lot more impurities in the water that is causing me to change them more often. I got these because I got so many for the price. However if I have to change them much more often, it wasn't much of a deal was it? EDIT 9/22 after comment from company: I would also like to add that the company "Coffee and Toy" are unprofessional. Bad reviews get a rude comment. Will not be buying from them anymore. Not just on my review but another. Have included a screenshot of the other comment where the company called her lazy and asked her if she even knew what a filter was. Will NOT be purchasing from them again.