The AquaChek 511244A tests for Free Chlorine, Cyanuric Acid, pH and Total Alkalinity found in your pool and spa water. It is recommended to test pool water from each end twice a week. Spas should be tested before each use. Write down results for each test to track changes. There are 50 test strips in the container.

Specifications:
• Part Number: AC511244EACH; 511244A
• AquaChek Yellow Free Chlorine Pool Spa Test Strips – 50 count
• Tests for Free Chlorine, Cyanuric Acid, pH and Total Alkalinity
• Recommended to test water at each end of pool at least twice a week and test spa before each use
• Write down tests results to keep track of changes