Product review (1 stars): Dissatisfied, do not filter at all!
I ordered these and based on reviews I was sure that we would be satisfied. My husband installed 2 different filters from the box and neither of them worked. We checked the quality of the water with our TDS meter after running more than the gallon of water per instructions. The meter read close to 300 ppm each time on both filters. What a disappointment. For comparison we checked our RO water and it read 8 ppm. It wasn't filtering at all. I would not recommend these filters.