Product review (1 stars): This just goes to prove that the Chinese are excellent at making cheap inexpensive crappy products
This is an inferior product.  I have run at least 10 gallons of water through this and am still  getting black "floaties" in my glass from time to time.  There is no nsf certification or any certification label on the box.  This just goes to prove that the Chinese are excellent at making cheap inexpensive crappy products.  If you disagree, I still have one left still sealed that I will sell you for $5.  I live in lawrenceville, ga, call or text 678 612 1437.