16 IN 1 WATER TEST STRIPSDrinking water test strips are contain 16 paramete, it can test Total Alkanlinity,pH,total hardness,Cyanuric Acid,total Chlorine, Free Chlorine,Free Bromine,Nitrate,Nitrite,Iron,Chromium,Lead,Copper,Mercury,Fluoride,Carbonate root. EASY & FAST TEST KITONLY 3 Steps to get accurate results.Frist, Simply dip one test strip into water for 2seconds; Second, remove the test strip and hold it horizontally for 30seconds; Third, comparing strip to color chart for the reference. WIDE USAGE WATER TESTING STRIPThe test strips are apply for testing drinking water, home faucets, well water, tap water, pool, hot tub spa and aquarium and more water quality test. For healthy, please use the professional drinking water test strips to detect water quality standards. 50PCS WATER TEST KITThe water testing kits for drinking water including 50 Strips that means you can test drinking water for 50 times at home for anytime. The economical and convenient water testing kit for home and school projects. 100% GUARANTEED RESULTSYour health is our top priority so for questions, please contact us. We will answer any questions quickly and to your satisfaction.