Now you can SAVE MONEY by buying resin in a premeasured bag to refill the reusable plastic cartridges that come with the system. The resin replacement bag is easy to install and virtually hassle free. You can change the resin in less than 5 minutes. Simply unscrew the watertight housings and remove the resin cartridge. Properly dispose the used resin, rinse cartridge, and refill with new resin. Then, put the cartridges back inside the housings and reattach it to the body of the unit.

It's EASY! You'll receive one replacement bag that will de-ionize approximately 100 gallons of water.