Product review (5 stars): Filter works great
I installed my first Tier 1 filter in May of 2015 and it's still working. I've ordered another filter because the name brand ones usually last 6 to 7 months. I would highly recommend this filter. Today is May 20th, 2016 and I just ordered my 3rd tier 1 filter. These last as long as the name brand filters, but at less than half the price.