3 in 1 Pool Check Test Strips 50 per bottle

• Accurate results that you can rely on
• Specially designed to work in both pools and spas
• Both chlorine systems and bromine systems
• Economically priced

3 in 1 Pool Check Detection Ranges

• Free chlorine: 0, 0.5, 1, 3, 5, 10, 20 ppm
• Bromine: 0, 1, 2, 6, 10, 20, 40 ppm
• Total alkalinity: 0, 40, 80, 120, 180, 240, 360 ppm
• pH: 6.0, 6.4, 6.8, 7.2, 7.6, 8.2, 9.0