I just bought the Hanna Phosphorus test kit. I had the regular phosphate checker from them but it’s old and started acting funny. So I got this new one. The guy at the store said the reagents for the regular phosphate checker would be the same as this one. Which was good because I have a full box of the reagents from my old tester. I noticed the reagents that came with the new one had a different number code on it. So are they really the same?

