6-way test kits are color coded for use of the reagents and hardness as well the tester block to hold the water. Built-in color on front. Deluxe square test block features easy-read fill indicators. Test reagents include. Chlorine/Bromine 22ml/0.74 oz. pH phenol red 22ml/0.74 oz. Acid demand 22ml/0.74oz. (1) of each Total Alkalinity ALK-10 ALK-20 ALK-30 22ml/0.74 oz. (1) of each Total Hardness solution A & B 22ml/0.74 oz