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Instant Ocean Nitrate & Phosphate Test Kit
Tests freshwater and saltwater nitrate levels ranging from 0 to 100 mg/L and phosphate levels ranging from 0 to 1.0 and 1 to 5.0 mg/L. Foil-sealed granular test chemicals dissolve quickly and color-chip comparator helps ensure accurate testing. Kits and Refills contain 20 tests.
