| [EPA LEVEL DETECTION] water test strip is designed and manufactured with reference to EPA standards. Each of our tests can detect pollutants at EPA level. [16-in-1 water quality test kit] The water quality test strip is equipped with 16 main functions, including PH value, hardness, lead, iron, copper, mercury, total alkalinity, nitrite, nitrate, bromine, free chlorine, total chlorine, fluorine, chromium/chromium, carbonate, cyanuric acid, covering the main factors affecting the quality of swimming pools, hot baths or drinking water. [Accurate and scientific water quality test strip] has been committed to of testing and measurement for many years, and has adopted the most reliable test strip … | |