DescriptionLamotte 2976-12 Insta-Test(R) 3 Plus Test Strip; Free Chlorine/Bromine/Alkalinity/pH Testing, White, 50/Bottle Free Chlorine, Bromine, Alkalinity, pH The Insta-TEST® 3 Plus pool & spa strip measures Free Chlorine 0-10 ppm, Bromine 0-20...