Ok here is the story, the resin is not the same, it is lab grade apperantly, so the same mix of resins just purer??
>the price for the non color changing with out shipping is 2.58 per pound which works out to be 3.68 per refill.
>The price for the color changing resin with out shipping is 3.56 per pound which works out to be $ 5.08 per
I am leaning towards the non color chaging as I have a tds meter, but I am open to the other to. I dont mind buy a bunch and then sending some out to those that want, so let me know.
Mike