Poolmaster 3-Way Swimming Pool and Spa Water Test Kit with Case

Test chemical levels in your pool or spa with this Poolmaster 3-Way Swimming Pool and Spa Water Test Kit. It measures pH, chlorine and bromine levels to keep water balanced. For easy use, it offers a 1/2 oz. solution of phenol red and OTO. A round, clear-view test block with color readouts and numerical indications allows convenient reading. A weather-resistant case protects the kit.