Literally the best quality filter water. No aluminum, no harmful chemicals, and everyone who comes over and drinks the water then gets water out of our regular spigot says Wow that thing works! We have extremely strong sulfur water. Our first install was in October 2017 and those filters lasted 7 months before the sulfur smell/taste came back I would say that's pretty darn good for a family of 4 that uses it to cook 3 meals and drink all day!