The Commercial RO has three 20-inch pre-filters (a 10 Micron sediment

5 V button cell batteries (LR44 or equivalent

±3°C (-50 to -10°C )

When the blue tank is full

20" DI Cartridge Refillable MiscROSystemParts The Commercial RO has three20" Refillable Cartridge Clear Twenty inch re fillable cartridge. Filter filled with non color changing DI resin. Resin is a mixed bed 50% Anion and 50% Cation DI resin. Used in car wash spot free and zero TDS applications. Excellent for fish and aquarium stores. Shown with a ten inch filter for size comparison. Add this DI filter and a 20 inch slim line filter housing to our commercial pump driven RO system for awesome top off water OR if you want to