Tests nitrate levels from 0 to 160 parts per million. high levels of nitrate are a food source for unwanted algae and indicate poor water quality. keep out of reach of children. solution #1 contains 41 percent hydrochloric acid.

Product Details
Fill a clean test tube wtih five milliliters of water being tested. add 10 drops solution 1. cap tube invert to mix. shake solution 2 for 30 seconds. add 10 drops solution 2. shake tube 1 minute to mix. wait five minutes. read results against card.
Test tube cap computer-analyzed laminated color card to read results two testing solution bottles.

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