Wild winter give away – FREE Crystal Clear Clarifier on orders over $80.00.

Water Test Tablets

Water Testing Tablets (Strips of 10)

DPD1 Free Chlorine, DPD2 and DPD4 Total Chlorine, Calcium Hardness, and Cyanuric Acid water testing tablets for pools and spas.

Available in:
  • DPD1 - Free Chlorine (Strip of 10 tablets) - $5.00 inc GST
  • DPD3 - Total Chlorine (Strip of 10 tablets) - $5.00 inc GST
  • DPD4 - Total Chlorine (Strip of 10 tablets) - $6.00 inc GST
  • Calcium - Calcium Hardness (Strip of 10 tablets) - $14.00 inc GST
  • Cyanuric Acid - Stabiliser (Strip of 10 tablets) - $6.00 inc GST

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Product Description

Provides fast and accurate water analysis. Enables basic and advanced water testing and will suit any type of pool and spa. Regular water testing means balanced pools and spas, less problems and happier pool and spa owners.  To be used with water test kits of any brand including our BioLab 6-in-1 Water Test Kit and LaMotte Cyanuric Acid Test Kit.


Note: The DPD tablet No. 3 is used after DPD1 to measure total chlorine or bromine. (Add tablet to vial already containing DPD1, measuring free chlorine – use instead of DPD4) The difference between the two measurements is the combined chlorine (Chloramine) or bromine (Bromamine) value. Chloramines are an undesirable form of chlorine which does not sanitise and can cause irritation.



Additional Information

Weight 0.01 kg

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We ship freight free for North Island orders over $169.00, and Waiheke Island and South Island orders over $269.00 (Applies only to orders under 25kg Auckland, elsewhere under 15kg.  Where applicable, RD and DG goods surcharges still apply).  Please click here for more details.


We stock quality pool and spa products and are confident that you will be very pleased with your purchase. If for any reason you are not satisfied please return it to us for a refund or exchange within 7 days of the purchase date. The refund will cover the purchase price of the returned product, including return shipping.  Please click here for more details.

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