Water Quality Tester Kit by PRO–LAB™ The Professional Water Quality Test Kit is an inexpensive, easy-to-use and reliable means to check water quality at home with instant results. The Professional Water Quality Test Kit accurately monitors municipal and well water as well as the efficiency of home water filtration devices and is recommended for use every 3 months. The product features laboratory grade test strips which will measure for potentially major water problems such as chlorine, iron, pH, copper, alkalinity, nitrate/(nitrite) and water hardness. By placing the test strips under cold water according to the directions, and comparing the results against the color charts provided, home-owners can have accurate test results indicating “danger”, “caution” or “safe” levels in as little as 5 minutes. The PRO-LAB Professional Water Quality Test Kit contains eight (8) individually foil wrapped, laboratory grade test strips (patented), allowing you to perform a total of sixteen (16)