Product review (3 stars): Be Aware - Does not state that it is certified to meet NSF Standard 53
NSF Standard 42 covers reduction of Chlorine and those factors that aesthetic water qualities such as taste and clarity and meeting it will make the water taste good.

NSF Standard 53 covers reduction of Lead and other chemicals that can harm you.  This filter does not have this certification, while some more expensive filters do have it, which is probably in part why they are more expensive. (The other part is probably marketing...)  That is *not* to say drinking water via this filter is unsafe - it all depends on whats in the water to start.

Check with your local water authority to see what your filtering needs are and buy filters accordingly.