The HI784-25 are powder reagents for the determination of ammonia in marine water using the HI784 Checkers. These high-quality reagents are manufactured in our state-of-the-art facilities and are clearly labeled with the lot number and expiration date on each packet. They operate within an expected range of 0 to 2.5 ppm (mg/L of NH₃).

• Powder reagent sachets

• Shelf life: 25 tests

• Store in a dry environment