I really don't understand what the discount is. It seems they say everybody gets the "best price"...but what is that? I'm interested in a Hanna Phosphate meter. They are $49.99 on the site, and I may jump in on the group buy if the discount is good.
Hanna Checker Phosphate PO4 Colorimeter - English
Hanna Checker Phosphate PO4 Colorimeter - English