Insta-TEST^® Cyanuric Acid Test Strips

Measures the stabilizer levels from 0, 40, 100, 150, 250, 500 ppm instantly! Each bottle includes 25 test strips packaged in a waterproof PopTop bottle with a molded desiccant liner, which protects the strips from moisture and UV light. This product includes trilingual (English, Spanish, French) instructions.