Selecto’s cutting-edge hollow carbon technology for POE application replaces carbon block. Cartridges have been tested and certified for chlorine, chloramine, particulate, turbidity and live cyst removal against NSF/ANSI Standards 42 and 53. Features include a modular design that makes installation and cartridge replacement easy and allows add-ons for increased flow and higher capacity. Dirt, chlorine and chloramine reduction associated with minimum pressure drop make it ideal for whole-house filtration. http://www.selectoinc.com