SuperCheck Chlorine Test Strips, 0-750 ppm, 50 Count, Chlorine Test Strips for Food Service, Measure Chlorine Contents… Price: $11.99 (as of 22/03/2023 06:52 PST- Details)

HIGHLY SENSITIVE CHLORINE TESTING KIT – Detection range 0-2000 ppm(0, 100, 250, 500, 1000, 1500, 2000). NOT for pools, hot tubs, spas or tap water. For testing chlorine sanitizers and disinfectants only
EASY TO USE, IDEAL TO TEST CHLORINE – Only 1 color pad to compare to the chart for a more precise read, accurately measure sanitizer and disinfectant chlorine levels, for technical and non technical users alike
BOTTLE OF 5 PACKAGES, BETTER THAN ROLLS – 50 strips are sealed well with 5 individual moisture-proof packages in one plastic bottle to preventing them from being damaged, with pre-cut long plastic strips, safer