16 in 1 Drinking Water Test Kit - Hofun Professional Hardness Test Kit, Tap and Well Water Hardness Test Strips, PH, Mercury, Lead, Iron, Copper [16 IN 1 WATER TEST KIT] Hofun test strips provide 16 key functions: PH, Mercury, Lead, Iron, Copper, Total Alkalinity, Hardness, Nitrite, Nitrate, Bromine, Free Chlorine, Total Chlorine, Fluoride, Chromium, Carbonate, Cyanuric Acid, helping you assess water clarity and quality. [EASY OPERATION] The Hofun test kit includes a dropper and test tube for precise sampling, minimizing contamination and ensuring convenient use. Suitable for tap water, well water, pond, aquarium, and other water sources. [SCIENTIFIC WATER TEST STRIPS] Hofun specializes in water testing and analysis, using reliable test strips to ensure accurate results. Avoid the need to send samples to a lab and save time with quick, on-site testing. Test strips expire 3 months after opening.