BlueStars Standard 3-Way Swimming Pool & Spa Water Test Kit - Test Water For PH, Chlorine, And Bromine

Professional 3-way water test kit for maintaining proper Chlorine, Bromine and pH chemical levels in swimming pools and spas Kit includes a 1/2 ounce dropper bottle of OTO (Orthotolidine) Chlorine Test Solution and a 1/2 ounce dropper bottle of Phenol Red pH Test Solution Includes clear view water testing block with accurate measuring scale and integrated color markings for the chemical levels