1.Improved water clarity: keep your pool shiny with the 8in1 pool test strips that analyze salt, hardness and chlorine, as well as pH, cyanuric acid and alkalinity at once. Enjoy an uncomplicated way to keep your pool or spa y. 2.Comfortable pool water test: simply take a sample of pool water, immerse the test strip in the water, then hold it horizontally for 15 seconds and compare it with the colourimeter. Get comprehensive results in seconds fast, easy and accurate water tests. 3.Improved pool maintenance: achieve efficient pool and maintenance with our test strips. Immerse the strip in water and get detailed analysis within minutes for simplified care and crystal clear water. 4.Easy intake: maintain the balance of your pool with our test strips, now in a compact bottle that is easy to carry. These strips are perfect for on the go and make checking pH a breeze. So you can ensure a y pool anywhere.