Blue Devil Test Kit includes 5-way OTO – chlorine/bromine, pH, alkalinity and acid demand.
* Includes easy-to-read color comparator, easy to read instructions and a plastic storage case
Download instructions here: https://www.valterra.com/downloads/download-info/5-6-way-oto-test-kit-instructions-englishspanish-b7446cb7448-b7550/
