Hanna Marine Nitrate High Range Reagents – 25 Tests (HI782-25)

The Hanna HI782-25 Marine Nitrate High Range Reagents are genuine replacement reagents designed for use with the Hanna HI782 Marine Nitrate High Range Checker HC. Each box contains enough pre-measured reagent packets for 25 nitrate tests, delivering fast, accurate, and repeatable results for saltwater and reef aquariums.

Key Features

25-Test Reagent Pack
Includes 25 individually sealed reagent packets, each pre-measured for quick and convenient testing.

Designed for the HI782 Checker
Specifically formulated for use with the Hanna HI782 Marine Nitrate High Range Checker HC. These reagents are not compatible with other Hanna nitrate checkers.

High Range Marine Nitrate Testing
Measures nitrate concentrations in saltwater aquariums across a range of 0.0 to 75.0 ppm (mg/L) NO₃⁻, making it ideal for marine and reef systems with higher nutrient levels.

Zinc Reduction Method
Uses Hanna’s zinc reduction colorimetric method, where the reagent reacts with nitrate to produce a pink colour that the checker measures accurately.

Genuine Hanna Quality
Manufactured using high-purity chemicals and clearly marked with lot numbers and expiry dates to ensure traceability and reliable results.

Specifications

• Brand: Hanna Instruments
• Model: HI782-25
• Product Type: Marine nitrate reagent refill
• Number of Tests: 25
• Method: Zinc Reduction Method
• Parameter: Nitrate (NO₃⁻)
• Testing Range: 0.0–75.0 ppm (mg/L)
• Application: Marine & reef aquariums
• Compatible Meter: Hanna HI782 Marine Nitrate High Range Checker HC

Ideal For

• Marine aquariums
• Reef aquariums
• Fish-only marine systems
• Routine nitrate monitoring
• Maintaining healthy water quality

Why Test Nitrate?

Regular nitrate testing helps maintain stable water quality and supports the long-term health of fish, corals, and other marine invertebrates. Monitoring nitrate levels also helps identify overfeeding, insufficient filtration, or the need for maintenance before water quality declines.

⚠️ Important Notes

• Compatible only with the Hanna HI782 Marine Nitrate High Range Checker HC.
• Store reagent packets in a cool, dry place away from moisture and direct sunlight.
• Do not use expired reagents.
• Follow the HI782 testing procedure for accurate results.

Pro Tip 💡

Always wipe the outside of the cuvette with a clean, lint-free cloth before inserting it into the checker. Fingerprints, salt residue, or water spots can affect the light path and reduce measurement accuracy.