HI781-25 Marine Nitrate Low Range Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI781 Marine Nitrate Low Range Checker HC. They are manufactured in our state-of-the-art facility and clearly marked with the lot number and expiration date on each packet for traceability.

• Pre-made reagents for ease of use
• Prepared with high-purity chemicals
• Marked with expiration date and lot number for traceability