Top critical review
158 people found this helpful
NSF 42 Has Nothing to do with Water Quality!
on December 2, 2016
Just a heads up, I didn't purchase this product. I was about to, but then I did some research. NSF 42 has nothing to do with the quality of water (a.k.a. efficiency of removing harmful chemicals from the water.)
NSF 42 only applies to the structural integrity of the filter (a.k.a. it won't blow up under pressure in your fridge)
If you're interested in actual filtration performance, you want a filter that is ANSI/NSF 53 certified (like the OEM filter). However, that's going to cost more. But if I'm buying a filter so I can clean up tap water, I want something that's actually doing the job...
I've attached a screen grab from the NSF website for further explanation.