Optional cartridge that enhances the life of the 9001 DI Cartridge in areas that experience TDS > 400 mg/L. Increases life by up to 5 times!
Change when monitor indicates (change with 9001 DI Cartridge Pak)
If you do not already have the Ezee Kleen 2.5 9001-XL DI Cartridge installed in your Ezee Kleen 2.5 order the Ezee Kleen 2.5 (9001- XL DI Cartridge Install Kit)