We offer ca se sx - carbon block. Activated carbon block made from coconut shell, providing fine sediment filtration and reduction of chlorine, taste, odour (cto) and volatile organic compounds (voc). Silver impregnated models for bacteriostatic effect with filtration at 0.3 micron. Pb models providing heavy metal reduction with filtration at 1 micron. Cartridges available from 4'' to 10''.