Hydrion 0-300 chlorine test strips measure the concentration of free chlorine in sanitizing solutions. The color chart has matches at 0-25-50-100-200-300 ppm. Carton includes 6 vials of 100 strips. Sold in carton quantities only.
Product Directions
Dip strip into the solution for 1 second. Remove strip and shake off excess solution. Match to color chart within 5 seconds for accurate free chlorine measurement.
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