Mixing Different Hanna Reagent + Tester

[SauceyReef]

I have a HI-775 and accidentally bought some replacement reagents for HI-772-26 (past return date). Is it possible for me to use these? Or will I have to buy the correct one.

 

[AydenLincoln]

No you can’t mix them! You’d have to buy the correct one to get the most accurate/correct results.