Free Chlorine water quality test strips combine a wide range of water quality detection with our patented Free Chlorine indicator. Designed to resist interference from monochloramines, Free Chlorine is the ideal product when testing water quality in a food processing environment. Free Chlorine is perfect for determining whether or not you have the correct amount of sanitizer present. Sold in bottles of 50 and packets of 30 test strips, all of the reagents are impregnated on the test strip pad, and no external chemicals are needed to perform the water quality test. Additional Details ------------------------------ Product description: Free Chlorine water quality test strips combine a wide range of water quality detection with our patented Free Chlorine indicator. Designed to resist interference from monochloramines, Free Chlorine is the ideal product when testing water quality in a food processing environment. Free Chlorine is perfect for determining whether or not you have the correct amount of sanitizer present. Sold in bottles of 50 and packets of 30 test strips, all of the reagents are impregnated on the test strip pad, and no external chemicals are needed to perform the water quality test.