Product review (1 stars): Not sure how these things are getting good reviews, I'm guessing people are just going off ...
Not sure how these things are getting good reviews, I'm guessing people are just going off the low price and aren't concerned about how well they actually work are filters. I have used the LG brand filters, and for quite a while I was using the Water Sentinel brand, and both work really well. I got cheap and bought a pack of these, and I'm fairly confident they are just empty shells. With any carbon filter you have to run some water through the filter and dump it before use, to get rid of the excess carbon that comes out. With these filters, the water is completely clear right from the first run, there is no indication that any carbon even exists in these filters.

This is even more evident when you try to drink the water. I have a strong chlorine taste when using these filters, the same taste I get straight from the tap. With both the LG and Water Sentinel filters, the bad taste is removed. My wife agrees, and is very unhappy with the filter. I do see they offer a 6 month warranty, unfortunately I bought mine almost 8 months ago and just now used one. I'll contact the manufacturer an see if I can possibly return them, but they don't even look like they sell them anymore so I won't hold my breath. If they ever come back in stock, spend the money and get an actual filter, not a plastic shell.