100 strips / vial 100 test strips for water analysis for drinking water test strips. Made from high quality imported filter paper. Different colors on the box and packaging allow precise and easy determination of the measured values.de Test strips for drinking water 16 in 1 carbon dioxide, nitrite, total alkalinity.Test strips Multifunctional The test strips are ideal for testing swimming pool, drinking water, hot tubs, well water, spas, aquariums and much more. It is very convenient to take it everywhere. You can know the exact amount of chemicals in your water.Quick water test Immerse the test strips with all the colored fields in the water for 5 seconds. Then hold it horizontally for 60 seconds, then compare it to the table for reference, it is an easy way to test 16 parameters at a time.Storage method For best results and long lasting conservation, store the product in a dry, cool and dark place. Do not touch the test areas of the test strips; keep them away from light and moisture. After removing the bands, quickly put the cap back on.