Features: Experience precise and rapid testing with our paper test strips, to measure chlorine level, cyanuric acid, frees chlorine, and more, ensuring comprehensive water quality analysis. Featuring easy to use design, these test strips require no professional knowledge, offering clear and intuitive result for immediate understanding. Ideal for home users, pool maintenance personnel, water quality enthusiasts, seek reliable water analysis. Perfect for testing drinking water, monitoring swimming pool conditions, maintaining aquariums, and conducting preliminary laboratory analyses. This paper test strips is a must having tool for anyone needing quick and accurate water quality assessments. Specifications: Component:Paper Styles:9 in 1/8 in 1/7 in 1/6 in 1 Package Includes: 1 Box Water Test Strips note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.