Carbon Blocks are manufactured by a unique multi-stage compression process to ensure uniform density and block-to-block consistency. Filtrex's two component binder system ensures low pressure drop and adds electric charge to increase the kinetic adsorption. Filtrex Carbon Blocks use only coconut shell carbon. All Green Blocks are manufactured by using ECOCARB with no GHGs emission. We offer Filtrex compatible replacement filters for major filtration systems. These filters will reduce lead, chlorine, VOCs, and cysts providing safe and worry-free filtered water for residential or industrial use.