Rainfresh VC1 filter cartridge is a high performance 1 micron activated carbon filter designed to reduce volatile organic compounds (VOC ) including pesticides, herbicides, insecticides, benzene, trihalomethanes (THM ) and chlorine from potable water. It is also highly effective in improving water taste and odor. VC1 cartridge is made from high-quality activated carbon constructed in a proprietary compact style to deliver high adsorption performance and excellent contaminant removal characteristics. The solid block construction creates much higher surface area and prevents channeling and bypassing for exceptional performance and long life. Rainfresh VC1 activated carbon block filter cartridge fits Rainfresh and most standard filter housings.