Hanna Instruments HI764-25 / 764-25 | Nitrite Ultra Low Range Checker Reagents (25 Tests) | Aquarium Testing

Hanna Instruments HI764-25 / 764-25 | Nitrite Ultra Low Range Checker Reagents (25 Tests)

Keep your HI764 Nitrite Ultra Low Range Checker® HC performing with accuracy using genuine HI764-25 reagents. Each kit provides enough pre-measured, high-purity chemicals for 25 tests, ensuring reliable nitrite readings in your aquarium. Designed for ultra-low detection, these reagents are essential for reef aquariums where even trace nitrite levels can harm corals and livestock.

• Includes reagents for 25 tests
• Compatible with the HI764 Nitrite Ultra Low Range Checker® HC
• Pre-measured for convenience and consistent results
• Manufactured with high purity chemicals
• Lot number and expiration date clearly printed for traceability
• Ideal for monitoring nitrite at ultra-low concentrations (0–200 ppb)

More Information

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FAQ

• Is this for freshwater or saltwater? Best suited for marine and reef aquariums where nitrite levels must remain ultra-low.
• How many tests are included? Each kit contains reagents for 25 tests.
• Do these work with other checkers? No, they are specifically designed for the HI764 Ultra Low Range Checker® HC.