The AquaMetix® gravity block is designed to provide high-quality drinking water for pour through and gravity type systemsfor municipally treated water supplies. This molded block technology is designed to reduce particulate, chloramines,chlorine, VOC’s, heavy metals, pesticides, glyphosate, lead, mercury, and fluoride without pressure, and without primingor pre-wetting procedures. Specifications Metix® gravity block is specifically designed for gravity and pour through filter systems. Reduces chloramine (including the ammonia compound), chlorine, lead, herbicides, pesticides, glyphosate, VOC’s, heavy metals, pharmaceutical compounds, nitrates, and fluoride. · One gallon per hour performance· No priming or pre-wetting of the filter required· >95% Chloramine reduction—chloramine, monochloramine, and ammonia· >95% Lead reduction· >99% Herbicides, pesticides, and glyphosate reduction· >98% VOC’s and heavy metals reduction· >85% Fluoride reduction—All types: Fluorosilicic acid/hydrofluorosilicate, sodium fluorosilicate, and sodium fluoride