Chlorine Test Strip, Test Form Strip, Overall Length 2 3/4 in, Test Type Test Strips, Testing Parameter One Free Chlorine, Overall Width 1/4 in, Parameter Measurements Included 0 to 300 ppm Free Chlorine, Number of Tests 600, Test Detects For Free Chlorine, Includes (6) Vials of 100, Minimum Percentage Measurement Not Applicable, Minimum Measurement One 0 ppm, Maximum Measurement One 300 ppm, Package Quantity 6