Description: Feature 5 in 1 Test Strip Kit Pool chemical test strips tests for 5 parameters: Total Chlorine, Free Chlorine or Bromine, pH, Total alkalinity,Total Hardness. Extremely Accuracy The pool and spa test strips is made of imported filter paper, 5 color indicators on each strip, high accurate and reliable instant reading are obviously to see. Easy to Use and Read Simply dip a test strip into water for 2 seconds, then take it out and wait for 15 seconds,compare each test strip to the color chart on the bottle, then you can obtain the results. Application The pool water test strips can help you test swimming pool, Spa, hot tubs water chemistry, so that to keep the pool water in a healthy and clean condition. Easy to Store 50 counts water quality test strips,seal well with 5 individual moisture-proof packages in one plastic bottle to ensure the test strips can store for 2 years. Specifications: Size95x37MM Weight15G Package Included: 1X Pool Test Strips (50pcs) 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.