16-in-1 Water Test Kit: Our pool water test kit offers the broadest range of parameters on the market, covering all the major contaminants you need to worry about. This includes H, mercury, lead, iron, copper, total alkalinity, hardness, nitrite, nitrate, bromine, free chlorine, total chlorine, and fluoride. Widely Used: Water test strips not only for drinking water, but also can be applied to a wide range of water quality tests, such as drinking water, laboratories, swimming pools, hot tubs, spas, ponds, aquariums, industrial wastewater Save Time: Testing each elements individually in the lab can cost hundreds of dollars. But with this water testing kit, can help you test 16 elements at once. Save your time and money. Easy to Use: Pool water test kits is so simple, that anyone can use it with zero expertise or equipment. Whether it's a faucet, well, municipal, filtered water, spring, or any other water source, you can get results quickly and easily! Results are available in just three steps 100 Strips: Each water test strip provides accurate and fast results for any water source, including well and tap water, drinking water, or any other drinking water source. Perfect for children's science fair projects and school classroom water testing. Material: PET colour: as shown Package Contents: 100 x Drinking Water Test Strips 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.