Application : The water test strips for testing drinking water, home faucets, well water, tap water, pool, hot tub spa and aquarium and more water quality testing.EASY WATER TEST KIT: ONLY 3 Steps to get accurate results.Frist, Dip one strip into water for 2seconds; Second, remove the test strip and hold it horizontally for 60seconds; Third, comparing strip to color chart for the reference. You can test drinking water by yourself at home for a low cost at fast way.EXCELLENT CUSTOMER SERVICE: Customer's satisfaction is our final goal. If there are any problems, please contact us, Our Team will try our best to help you.Attention: To all our customers, this product belongs to store of MoS-EU. Please choose the right store before order.