Valterra’s Blue Devil 3-Way OTO Test Kit makes it a cinch to test your spa or pool’s chemical levels, making it an important way to protect you and your guests from harm! The test kit enables you to check pH, bromine and chlorine. Utilizes simple color code standards so that anyone can put the test kit to good use. Full instructions included inside the carrying and storage case.
Blue Devil 3-Way OTO Test Kit FAQs
Includes 1 ounce bottles of Phenol Red and OTO. Also comes with an easy to read comparator. Please note: replacing the testing solution at least once a year is recommended. Store in a cool, dry place to receive the most accurate results. Test your spa or pool water daily.