3M CS-91C Replacement Filter Cartridge Choose::Box of 4 make sure you also buy

make sure you also buy a front acrylic panel

This quartz sleeve provides thermal protection for the system's UV lamp and protects it from possible damage

The heavy-duty butyl aircell tank construction is chlorine resistant and 100% lead-free

Should be replaced annually to ensure optimal performance

The DGD Series filter cartridges feature high capacity and dirt-holding design

3M CS-91C Replacement Filter Cartridge Choose::Box of 4 make sure you also buyFeatures: Reduces calcium and magnesium carbonates that form hard scale Extends equipment life Proven technology reduces cloudiness and extends holding time in brewed tea Improves beverage quality Compatible with Cuno CS 910C Softening System for Espresso Machines and Tea Brewers.