DPD1 x 250 Test Tablets - Swimming Pool & Spa Water Chlorine 4 in 1 strips kit

Diethyl-p-phenylenediamene  (DPD) tablet 1 dissolves rapidly to determine the chlorine or bromine content of your pool.  It reacts with the pool water sample, changing its colour in various shades of red—the deeper the colour, the higher the concentration of the sanitiser (chlorine or bromine) present.

All you need is your existing 5ml or 10ml pool water sample and the colour chart that came with the kit.
 

• DPD 1 Tablets are used for testing Total Chlorine andare compatable with the 2 in 1 and 4 in 1 test kits.
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• Keep your tablets up to date to ensure you get an accurate reading
• Easy, Simple and Effective