National Testing Laboratories, Ltd.

National Testing Laboratories, Ltd. provides the most dependable mail-in pesticide test kit to help identify contaminants in water.

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Fresh Water Systems is proud to carry a test kit with high accuracy, wide measurement range, and a quick turn-around result time of 10-15 days from the date the samples are received at the laboratory. The Watercheck Test Kit tests remove bacteria, heavy metals and minerals, inorganic chemicals, physical characteristics, trihalomethanes (THMs), and volatile organic compounds (VOCs) in water.