Product review (5 stars): Works good but never locked in.
I used this for an LG refrigerator. Number 5231JA2002A. The filter went in but it is missing the part that makes it lock in tight against the filter housing. My LG filter had a protruding circle on top of the filter but this one does not. It does not leak but would have been a little better if it tightened up after turning it into place. With the money I'm saving it is worth it and I bought 2. Update 9/6/2017. I just put in a new filter (this brand)  and again no leak. I see where another vender has them for like a dollar cheaper but I ordered this again because I KNOW it works and didn't want to chance it.