Hanna Instruments HI782-25 Marine Nitrate High Range Reagents – 2-Pack (50 Tests)

Effortless nitrate testing for saltwater aquariums

Hanna Instruments HI782-25 Marine Nitrate High Range Reagents come as a two-pack designed to accompany the HI782 Marine Nitrate High Range Checker HC. Each packet is pre-measured, enabling quick setup without separate weighing, and is clearly labeled with a lot number and expiration date for traceability and quality assurance.

How the reagents work

The reagents follow a zinc reduction method: when added to your sample, a pink color develops with intensity proportional to the nitrate concentration. The HI782 instrument translates that color into a nitrate reading in ppm (NO3-).

What you get and how to use

• Two pre-measured reagent packets for 50 tests
• High-purity chemicals designed for consistent results
• Traceability with lot numbers and expiration dates on every packet

Real-world benefits and use cases

Designed for saltwater settings such as reef tanks, fish-only systems, or marine aquariums where nitrate control matters. The kit is optimized for a 0.0–75.0 ppm range, helping hobbyists monitor water quality with confidence and ease.

• Fast prep: no powder measurement required
• Clear results: color intensity maps to ppm NO3- quickly
• Simple handling: single-use packets minimize handling of concentrated chemicals
• Designed for higher nitrate scenarios without guessing

Quality you can trust

Manufactured in a modern facility with tight quality controls, these reagents emphasize traceability and purity. Each packet bears a lot number and expiration date to support consistent testing over time.

Storage and care

Store in a cool, dry place away from heat and moisture. Use before the listed expiration date for best results. After opening, reseal promptly and keep packets out of direct sunlight to preserve integrity.

Product specs and compatibility

Designed to be used with the HI782 Marine Nitrate High Range Checker HC for saltwater samples. The reagents are intended specifically for higher nitrate readings, helping you manage transition between low and elevated nitrate scenarios.