Hanna Instruments HI721-25 / 721-25 | Iron Checker Reagents (25 Tests) | Aquarium Testing

Hanna Instruments HI721-25 / 721-25 | Iron Checker Reagents (25 Tests)

Ensure accurate testing with your HI721 Iron Checker® HC using genuine HI721-25 replacement reagents. Each kit includes pre-measured, high-purity chemicals for 25 tests, providing consistency and reliability in iron monitoring. These reagents use the phenanthroline method, producing an orange tint in the sample to determine iron concentration.

• Includes reagents for 25 tests
• Specifically designed for the HI721 Iron Checker® HC
• Pre-measured packets for convenience and accuracy
• Manufactured with high purity chemicals
• Expiration date and lot number printed for traceability
• Measures iron in a range of 0.00 to 5.00 ppm (mg/L)

More Information

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FAQ

• Is this for freshwater or saltwater? Works in both, depending on application, but commonly used in freshwater and general water testing.
• How many tests are included? Each kit provides reagents for 25 tests.
• Can these be used with other checkers? No, they are designed specifically for the HI721 Iron Checker® HC.