Best Selling Products

Our Best Selling Products category features the most popular and trusted water testing solutions chosen by professionals and everyday users alike. From quick and easy test kits to advanced meters and reagents, these products have earned their place as customer favourites for their reliability, accuracy, and ease of use. Whether you’re testing pool water, drinking water, or industrial systems, these top picks deliver the dependable results you can count on.

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6009 products

Ezetrol DES Chlorine SensorEzetrol DES Chlorine Sensor
Kuntze Instruments
Ezetrol DES Chlorine Sensor Sale price£285.78
Save £0.64
Hanna Instruments-HI-711-25 Reagents For HI-711 Total Chlorine Checker
Hanna Instruments
Hanna Instruments-HI-711-25 Reagents For HI-711 Total Chlorine Checker Sale price£12.16 Regular price£12.80
Eutech Expert pH Pocket TesterEutech Expert pH Pocket Tester
Eutech
Eutech Expert pH Pocket Tester Sale price£79.52
On sale
Lovibond pH Buffer Solutions 7Lovibond pH Buffer Solutions 7
Lovibond
Lovibond pH Buffer Solutions 7 Sale priceFrom £3.88 Regular price£4.46
Save £4.64
Palintest Chlorine HR Pocket KitPalintest Chlorine HR Pocket Kit
Palintest
Palintest Chlorine HR Pocket Kit Sale price£41.76 Regular price£46.40
LaMotte Chlorine DPD no.1 ColorQ Tablets (100)LaMotte Chlorine DPD no.1 ColorQ Tablets (100)
LaMotte
LaMotte Chlorine DPD no.1 ColorQ Tablets (100) Sale price£18.00
Save £2.95
Lovibond Cal-Test TabletsLovibond Cal-Test Tablets
Lovibond
Lovibond Cal-Test Tablets Sale price£19.71 Regular price£22.66
On sale
Lovibond Molybdate No.1 Tablets - HRLovibond Molybdate No.1 Tablets - HR
Lovibond
Lovibond Molybdate No.1 Tablets - HR Sale priceFrom £25.84 Regular price£29.70
Blue Horizons 200g Large Stabilised Chlorine Tablets- Use CLTAB2002OL / CLTAB2005OL if out of stockBlue Horizons 200g Large Stabilised Chlorine Tablets- Use CLTAB2002OL / CLTAB2005OL if out of stock
Blue Horizons
Blue Horizons 200g Large Stabilised Chlorine Tablets- Use CLTAB2002OL / CLTAB2005OL if out of stock Sale priceFrom £10.22
Pro-Swim Bromine Tablets
Pro-Swim
Pro-Swim Bromine Tablets Sale price£91.94
Save £116.10
Palintest Lumiso OzonePalintest Lumiso Ozone
Palintest
Palintest Lumiso Ozone Sale price£657.90 Regular price£774.00
Stabilised Ultimate Multifunctional Chlorine GranulesStabilised Ultimate Multifunctional Chlorine Granules
TEST ALL WATER
Stabilised Ultimate Multifunctional Chlorine Granules Sale priceFrom £14.99
Lovibond Silica (PR) Phosphate Removing Tablets FoilLovibond Silica (PR) Phosphate Removing Tablets Foil
Lovibond
Lovibond Silica (PR) Phosphate Removing Tablets Foil Sale price£22.40
Probe Filling Electrolyte Oxel - 03 [For DO Probe] 30ml GelProbe Filling Electrolyte Oxel - 03 [For DO Probe] 30ml Gel
TEST ALL WATER
Probe Filling Electrolyte Oxel - 03 [For DO Probe] 30ml Gel Sale price£14.11
Save £33.50
Palintest/Wagtech Membrane Lauryl Sulfate Broth, 500gPalintest/Wagtech Membrane Lauryl Sulfate Broth, 500g
Palintest
Palintest/Wagtech Membrane Lauryl Sulfate Broth, 500g Sale price£301.50 Regular price£335.00
Palintest Sample Container, 50 /10 ml plastic (Discontinued)Palintest Sample Container, 50 /10 ml plastic (Discontinued)
Palintest
Palintest Sample Container, 50 /10 ml plastic (Discontinued) Sale price£11.73
Save £12.78
Palintest Contour Colour Comparator Kit Iron (MR) 0 - 10 mg/L FePalintest Contour Colour Comparator Kit Iron (MR) 0 - 10 mg/L Fe
Palintest
Palintest Contour Colour Comparator Kit Iron (MR) 0 - 10 mg/L Fe Sale price£72.42 Regular price£85.20
Palintest DPD Acidyfing 250 TabletsPalintest DPD Acidyfing 250 Tablets
Palintest
Palintest DPD Acidyfing 250 Tablets Sale price£26.44
Sold outSave £4.92
Palintest Calibration Conductivity Solution, Low Range, 74µS/cm, 500mLPalintest Calibration Conductivity Solution, Low Range, 74µS/cm, 500mL
Palintest
Palintest Calibration Conductivity Solution, Low Range, 74µS/cm, 500mL Sale price£27.88 Regular price£32.80
Save £6.43
Palintest Calibration Conductivity Solution HR, 12.88mS/cm, 500mlPalintest Calibration Conductivity Solution HR, 12.88mS/cm, 500ml
Palintest
Palintest Calibration Conductivity Solution HR, 12.88mS/cm, 500ml Sale price£26.37 Regular price£32.80
Save £9.81
Lovibond Reference Standard Kit (pH) 7.45 for MD 100, MD110, MD200Lovibond Reference Standard Kit (pH) 7.45 for MD 100, MD110, MD200
Lovibond
Lovibond Reference Standard Kit (pH) 7.45 for MD 100, MD110, MD200 Sale price£65.66 Regular price£75.47
Lovibond AF424 Hardness Test KitLovibond AF424 Hardness Test Kit
Lovibond
Lovibond AF424 Hardness Test Kit Sale price£51.97
Lovibond AF413 Total Alkalinity KitLovibond AF413 Total Alkalinity Kit
Lovibond
Lovibond AF413 Total Alkalinity Kit Sale price£51.97
Save £4.62
Lovibond Active Oxygen-Copper pHLovibond Active Oxygen-Copper pH
Lovibond
Lovibond Active Oxygen-Copper pH Sale price£30.90 Regular price£35.52

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