- DPD No1 Swimming Pool Testing Tablets
- 100 in a box
PRODUCT INFO:
DPD is an abbreviation of diethyl-p-phenylene diamine. DPD tablets react with pool water containing chlorine or bromine, colouring the water sample various shades of red. The deeper the colour the higher the concentration of sanitiser.
DPD No 1 tablets by Relax are to be used with a swimming pool water testing kit