About this item 7 Way: These test strips for pools and spas read 7 different chemicals in the water. The pool strips test 7 way offer clear readings in daylight and come with detailed instructions Easy to Use: To use the pool testing strips, collect a cup of pool water sample, dip the pool test strip in for 2 seconds, and then wait 60 seconds to read the pool tester strip with the color chart Efficient: The swimming pool water test strips take the place of larger swimming pool test kit sets. The pool chemicals test strips take only a few minutes to deliver a complete picture Practical: This pool water test kit can check total chlorine, bromine, hardness, alkalinity, cyanuric acid, and free chlorine levels quickly. It’s a convenient pool testing kit Versatile: These water testing strips function as hot tub chemicals test strips, pool test strips for above ground pool, pool test kit for inground pool, and other pool and spa test strips