Aquifer Refine® Carbon block CTO replacement filter

At Kohler, we design our products to give you the right mix of functionality and style to bring comfort to your daily routines. Feel confident with every sip that you are providing the best quality water for you and your family. The KOHLER® Aquifer Refine water filtration system effectively reduces contaminants including lead, mercury, PFOA/PFOS, pharmaceuticals and VOC in your cold water.