The 3M SGP195BN-T is a single cartridge water filtration system that helps to provide consistent high-quality water for espresso and espresso based drinks. A high capacity weak acid ion-exchange resin reduces calcium and magnesium ions to help prevent hard scale formation on heating coils and boilers resulting in energy inefficiency, downtime, and expensive service calls. Inlet water TDS and alkalinity are also reduced. Premium activated carbon reduces chlorine taste and odor and bitterness associated with poor water quality. A built-in bypass direct 75% of the inlet water through the media.