Product review (4 stars): Great, but not replacement filter!
I really like this filter. It's been great so far and I like that it gets rid of bacteria too. It came faster than anticipated which was really nice. I gave it 4 stars instead of 5 because I didn't realize that I cannot buy a replacement filter. The whole thing needs to be replaced in a year or after 1,500 gallons. That's a shame, because I think it's a lot of waste. However, if you are buying it because it's portable or because of its size, there's probably nothing else better out there for the price.