Product review (5 stars): A great replacement filter.
Let me put some helpful information here first:
This filter can replace the following LG/Kenmore filters: the LTP500P, the 5231JA2002A, and the 46-9890.

I purchased this filter as a replacement to my Kenmore 46-9890 filter(which is listed in other places with like 8 extra zeros) - It is identical in shape and fits just as well as the original.

This filter meets NSF/ANSI Standard 42.  This is one of two standards used to evaluate filtration system.  The one being applied here is to satisfy taste and odor problems.  Part of this Standard is a chemical reduction test - where this point of use filter needs to remove the manufacturers set amounts of chemicals like chlorine, iron or manganese.  If you're comparing this to other filters (especially cheap ones made overseas) I'd check it meets this standard. [If you have heavy metals in your water, you should research a NSF/ANSI Standard 53 filter, used upstream of this.]

So with that said, you should feel as comfortable as I do using this as your main filter for your drinking water.  I've enjoyed using it so far and am happy with this brand and the price point.

I'm happy to answer any questions to the best of my ability.  I recieved this filter at a discounted rate in exchange for my honest unbiased feedback.