Complete Water Test Kit: Our drinking water test kit included 300 Pcs test strips + 6 Bottle tests which are convenient for Home water quality test or school project. 17-IN-1 Water Test Strips: The water test kit contains 17 parameter, such as pH,Hardness, Hydrogen Sulfide,Iron,Copper,Lead,Manganese,Total Chlorine,Free Chlorine,Nitrate,Nitrite Sulfate,Zinc,Fluoride,Sodium Chloride,Total Alkalinity & testing EASY & ACCURATE TEST KIT: Easy use for everyone. Only 3 steps and 30 second, you obtain a reliable results. Save Time & Money: The water test strips can test 17 parameter means you can know 17 elements in your water in one time. There are 100 strips in a bottle means you have 100 times testing for water. So that you don't need send the water to lab to save time and money. APPLICATION &: The test strips are for testing all water around you ,testing drinking water, well water, tap water, pool &spa water, hot tub water and quality testing. Colour:As Shown Material:paper Package Contents: 3set x water test kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.