DPD No 1 (RAPID) testing tablets. These tablets are suitable for use in pool testers such as these, for the measurement of chloringe and bromine levels.
DPD No 1 tablets measure the following parameters:
free Chlorine 0.00 - 6.00 mg/l (0 - 6ppm)
free Bromine 0.00 - 13.2 mg/l (0-13.2ppm)
For use with most brands of pool testers.
