Product review (1 stars): Do not buy.  There is a reason this is so cheap.  Ask yourself if the potential risk is worth it.
We've been buying LG branded water filters for years.  When we installed this water filter and ran water through it muddy water came out for a bit.  We know we have to run the filter through for a bit to clear up any sediment, but this was about 1000x as much sediment as we have ever seen.  Regardless, after a few quarts it started coming out clear.  After many gallons of flushing later we tasted the water.  It has that plastic taste.  Again, the LG branded filters don't have this after-taste.

We immediately pulled out the filter and threw it away and ordered LG filters.

I can't say this strongly enough.  Do not buy.