Pool and spa owners are always looking for something quick and easy. It's an unbeatable test system: no caps to worry about and even greater moisture protection. These strips have a shelf life of 30 months, so no discarding them after a season, or doubting their accuracy!

Free Chlorine 0-10 ppm (or Bromine 0-20 ppm), pH 6.8-8.4 and Total Alkalinity 0-180 ppm.