The Micron MQ3 Triple Under Sink is our premium quick-change system that features double carbon filtration for maximum chemical reduction. This highly efficient design produces exceptional quality water by passing through a 3-stage filtration process. It starts by passing through a 5 micron sediment pre-filter removing dirt, rust and particles. It then makes its way through our granular activated carbon media that effectively reduces chemical and heavy metals. Finally entering the high-grade coconut carbon filter leaving nothing but beautiful tasting filtered water for you and your family to enjoy. Requires installation by licensed plumber.View MQ3 Specification Sheet Added Features and Benefits: Featuring advanced 3-stage filtration process with double carbon filtration for maximum contaminant reduction technology. Provides pure, safe, filtered water, free of chlorine, Trihalomethane (THM’s), chemicals, VOCs and heavy metals 5 micron filtration reduces sediment particles such as sand, dirt and rust. Maintains essential natural minerals and fluoride.