Big Blue Whole House Water Filter Cartridge | KDF55 + GAC 4.5" x 20" - Chlorine and Heavy Metal Removal

REDUCES chlorine taste and odor, water-soluble heavy metals, and controls scale, bacteria, and algae in your water. KDF is a patented medium that consists of high purity copper-zinc granules that use redox (exchange of electrons) to effectively reduce chlorine and heavy metals as well as controlling microorganisms in potable water. NSF CERTIFIED COMPONENT