R2-20s

Now you can SAVE MONEY by buying resin in premeasured bags to refill the reusable plastic cartridges that come with the system. The resin replacement bags are easy to install and virtually hassle free. You can change the resin in less than five minutes. Simply unscrew the watertight housings and remove the resin cartridges. Properly dispose the used resin, rinse cartridges, 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!