Twin Benchtop Filtration System with USA made 10" Fluoride SIR-900 cartridge and KX Technologies 0.5 micron PB1 second cartridge. Rated at better than 98% reduction of Fluoride and Chlorine. The Top of the line PB1 is also rated for Lead and Heavy Metal reduction. Includes the 3 different types of fittings to install the diverter valve to your faucet.