COMPREHENSIVE TESTING SOLUTION: Get accurate readings for pH, Free Chlorine, Total Chlorine, Bromine, Total Hardness, and Total Alkalinity with our 100-count pool and test strips. A cost-effective way to maintain perfect water balance. EFFORTLESS & RAPID RESULTS: Achieve precise water quality assessments with our easy-to-use test strips. Simply dip a strip into your pool or spa for one second, wait , and then match the colors to the included chart for instant . PRECISION YOU CAN TRUST: the safety of your pool or spa with our reliable test strips. Designed for consistent accuracy, our strips are ideal for regular maintenance, recommended usage is at least twice weekly for optimal water quality. USAGE GUIDELINES: Maximize the effectiveness and shelf-life of your test strips by storing them in a cool, dry place away from direct sunlight. the container is tightly sealed after each use and utilize the strips within 90 days of opening. Colour:As Shown Material:Plastic Package Contents: 100 * Pool 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.