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Low and high Total Phosphorous and a Total Nitrogen test that are reacted in a heater block and are then tested using a colorimeter or spectrophotometer. This ships as Small Quantity Hazardous Materials.

Part NumberModelCapacityQuantity
LA-4024-01Low Total Phosphorus0 - 3.5 mg/L25/Tests
LA-4025-01High Total Phosphorus0 - 100 mg/L25/Tests