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This kit measures total (NH3 4+) and free ammonia (NH3 4+ which is non-toxic) and thus it is much more important to keep an eye on the level of free ammonia in your system. This kit may be used with freshwater or marine water. Unlike other kits on the market, the chemical basis for this test assures that interference from other substances is highly unlikely. MultiTest™ Ammonia performs over 75 tests and contains a reference sample for validation.

1. Measures total and free ammonia down to less than 0.05mg/L
2. Multi-cavity plate for simultaneous testing of up to 6 tests at the same time
3. Includes reference for test validation
4. Marine or freshwater

Variety:

• SEA950 MultiTest: Ammonia 75 Tests