General description Hofun 16 in 1 Drinking Water Test Kit is a professional hardness test kit designed to assess the quality of tap and well water. It features 16 main functions that cover essential parameters affecting water quality, making it suitable for various applications including drinking water, swimming pools, hot tubs, spas, ponds, aquariums, and industrial wastewater. Technical specifications Tests for: pH, Mercury, Lead, Iron, Copper, Total Alkalinity, Hardness, Nitrite, Nitrate, Bromine, Free Chlorine, Total Chlorine, Fluoride, Chromium/Cr, Carbonate Root, Cyanuric Durability: Lasts up to 6 months with bi-weekly testing Compatibility and accessories Includes dropper and eyedropper for easy operation Comes with a test tube to prevent water pollution Usage Hofun water test strips are designed for easy operation, allowing users to quickly and accurately test water quality. Simply dip the strip into the water sample and compare the results with the provided color chart.