Lovibond DPD No. 3 Total Chlorine Test Tablets (250).
Using a testing kit, and in conjunction with DPD No. 1 (free Chlorine or Bromine levels – sold separately), DPD3 tablets can be used to get a Total Chlorine or Bromine level for your swimming pool or spa water.
The box contains 250 tablets, foil sealed in blister pack.
