This bypass can be purchased with or added on later to any of our single tank deionizers. You can easily go between deionizered and non deionizered water with the switch of two knobs. This allows you to bypass the deionizer when spot free water is not needed to extend the life of the resin.  This kit comes with reducing couplers to convert from 3/4″ to 1/2″ (as seen in the images). 

-The deionizer is not included.