Rainfresh QLV filter cartridge is a premium performance 1 micron activated carbon filter designed to reduce lead, Volatile Organic Compounds (VOC) including pesticides, herbicides, insecticides, benzene, Trihalomethanes (THM) etc, and chlorine from potable water. It is also highly effective in improving water taste and odour. QLV cartridge is made from high quality activated carbon with proprietary lead reduction media, constructed in a 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.