Based on the default testing schedule of 4x alkalinity, 2x calcium, and 2x magnesium tests per day, the reagent kit will last approximately 2-months before a new reagent is required.
240x Alkalinity Tests (reagent changed every month)
120x Calcium Tests (reagent changed every 2-month)
120x Magnesium Tests (reagent changed every 2-month)
2-Month Trident Reagent Kit
$49.99Price

