Feature 1、MULTI APPLICATION: PH test strips are suitable for aquariums, swimming pools, drinking water and many other water quality testing needs. 2、CONVENIENT AND EASY TO USE: The PH test strips are designed with simple test steps for non professionals, and the 9 in 1 design meets the needs of use. 3、HIGH ACCURACY: Professional water PH testing strips with accurate test results to ensure water quality safety, efficient and reliable. 4、SUFFICIENT QUANTITY: These PH test papers are stored in one bottle, 50 strips of test strips per bottle, enough for long time use. 5、CONVENIENT STORAGE: Storing the water quality test papers in a cool and dry place, avoiding high temperature, can keep the test papers effective. Item Type: PH Test Strips Material: Test Paper Specification: 50 Strips Per Bottle Storage: Cool and Dry Place, Avoid High Temperature Gross Weight: Approx. 78g/2.8oz Use: For aquarium, swimming pool, spa, industrial water, drinking water, pond, hot spring water, etc. Package List 1 x PH Test Strips (A Bottle of 50 Strips)1 x Instruction Manual 1 x Storage Bottle Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia