Product review (1 stars): Does it really filter?
For right now I give one star. The box.of 4 was a great price and came in perfect condition. After installing a filter in my refrigerator, I drained several cups and kept testing the waters with my Zero Water tester wand. It is still detecting a higher number than what is coming out of my tap. I will continue to drain water and recheck the level every few days. It should not have more contaminants than what I started with.