Product review (1 stars): Loud humming noise after 3 months of use.
This was my first Tier 1 water filter. Always bought Whirlpool before, but those are absurdly expensive. However, this knock off started to make a loud humming noise after 3 months of use. Guess I could switch these cheap ones out every few months and still come out ahead, but will probably just switch back to the expensive OEM brand and avoid the hassle.