AquaChek Yellow 4-In-1 Chlorine Test Strips, 50 Strips per Bottle | 511242A

AquaChek Yellow 4-in-1 Test Strips Features and Benefits Tests for Free Chlorine, Cyanuric Acid, pH and Total Alkalinity Provides Test Results in seconds! To keep your pool at its best, test at each end at least twice a week, and test your spa before each use Comes with complete instructions in multiple languages 12 Bottles per Case