I have an Alk., phos., and Cal. Hanna checkers. The Alk checker got by far the most use. I only used the calcium checker a handful of times and I used the phosphate about twice a month for the whole time I owned it. I owned the Alk and phos for about 2.5 years and I bought the cal checker when it came out. All work perfectly fine. 85.00 for all three of them shipped to your door. Only one that has reagents is the calcium checker and they expire this month. Please include 3% for fees.

