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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Lovibond Aluminium Checkit AF520Lovibond Aluminium Checkit AF520
Lovibond
Lovibond Aluminium Checkit AF520 Sale price£38.81
Save £45.73
Lovibond AF112G Shipboard Chlorine KitLovibond AF112G Shipboard Chlorine Kit
Lovibond
Lovibond AF112G Shipboard Chlorine Kit Sale price£306.02 Regular price£351.75
Save £1.63
Lovibond Acidifying PT Tablets Foil (Discontinued)Lovibond Acidifying PT Tablets Foil (Discontinued)
Lovibond
Lovibond Acidifying PT Tablets Foil (Discontinued) Sale price£17.58 Regular price£19.21
Save £59.02
Lovibond AF116B Chlorine / pH kitLovibond AF116B Chlorine / pH kit
Lovibond
Lovibond AF116B Chlorine / pH kit Sale price£394.95 Regular price£453.97
J-Quant Chlorine Indicator Strips (0-1000mg/l)J-Quant Chlorine Indicator Strips (0-1000mg/l)
Johnson Analytica
J-Quant Chlorine Indicator Strips (0-1000mg/l) Sale price£8.21
Hydrazine Vacu-Vial
vendor-unknown
Hydrazine Vacu-Vial Sale price£272.12
Save £2.64
Lovibond Hydrazine Test Powders
Lovibond
Lovibond Hydrazine Test Powders Sale price£17.65 Regular price£20.29
Hydrazine 3/126 0/ 0 - 0.5 mg/l Kit
Lovibond
Hydrazine 3/126 0/ 0 - 0.5 mg/l Kit Sale price£187.89
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Lovibond Hydrogen Peroxide L.R.TabletsLovibond Hydrogen Peroxide L.R.Tablets
Lovibond
Lovibond Hydrogen Peroxide L.R.Tablets Sale priceFrom £25.84 Regular price£29.70
Save £1.01
Hanna Instruments-77400P pH Combination Buffer Solution Kit 4.01 & 7.01 5 x 5 20ml sachetsHanna Instruments-77400P pH Combination Buffer Solution Kit 4.01 & 7.01 5 x 5 20ml sachets
Hanna Instruments
Hanna Instruments-77400P pH Combination Buffer Solution Kit 4.01 & 7.01 5 x 5 20ml sachets Sale price£19.29 Regular price£20.30
Save £4.51
Hanna Instruments-706 Phosphorus High Range Handheld Colorimeter - Checker®HCHanna Instruments-706 Phosphorus High Range Handheld Colorimeter - Checker®HC
Hanna Instruments
Hanna Instruments-706 Phosphorus High Range Handheld Colorimeter - Checker®HC Sale price£85.69 Regular price£90.20
Save £1.98
Hanna Instruments-70442P 1500 mg/L (ppm) TDS Calibration Solution, x25 sachets
Hanna Instruments
Hanna Instruments-70442P 1500 mg/L (ppm) TDS Calibration Solution, x25 sachets Sale price£37.62 Regular price£39.60
Save £1.75
Hanna Instruments-70300L pH Electrode Storage Solution, 500 mLHanna Instruments-70300L pH Electrode Storage Solution, 500 mL
Hanna Instruments
Hanna Instruments-70300L pH Electrode Storage Solution, 500 mL Sale price£33.25 Regular price£35.00
Save £3.15
Hanna Instruments-3846 Chromium VI Test Kit
Hanna Instruments
Hanna Instruments-3846 Chromium VI Test Kit Sale price£59.95 Regular price£63.10
GF/C Filter Papers ø25mm (50Pk)
DTK-TAW
GF/C Filter Papers ø25mm (50Pk) Sale price£24.28
Save £12.35
Hanna Instruments Pocket EC/TDS and pH Tester, High RangeHanna Instruments Pocket EC/TDS and pH Tester, High Range
Hanna Instruments
Hanna Instruments Pocket EC/TDS and pH Tester, High Range Sale price£234.65 Regular price£247.00
Floating Chlorine Tablet Dispenser - LargeFloating Chlorine Tablet Dispenser - Large
Test All Water
Floating Chlorine Tablet Dispenser - Large Sale price£8.50
FE8 - Iron HR 65mlFE8 - Iron HR 65ml
DTK-TAW
FE8 - Iron HR 65ml Sale price£9.18
FE6 - Iron HR 65mlFE6 - Iron HR 65ml
DTK-TAW
FE6 - Iron HR 65ml Sale price£12.20
Eutech EcoTestr Salt
Eutech
Eutech EcoTestr Salt Sale price£74.25
Save £3.15
Lovibond Electrolyte Solution, Oxygen SensorsLovibond Electrolyte Solution, Oxygen Sensors
Lovibond
Lovibond Electrolyte Solution, Oxygen Sensors Sale price£21.06 Regular price£24.21
DTK Potable Water Test Kit
DTK-TAW
DTK Potable Water Test Kit Sale price£841.42
Copper Test Strips [0-5ppm] (25Pk)
DTK-TAW
Copper Test Strips [0-5ppm] (25Pk) Sale price£32.94
Save £9.47
Lovibond Checkit® Comparator pH UniversalLovibond Checkit® Comparator pH Universal
Lovibond
Lovibond Checkit® Comparator pH Universal Sale price£63.41 Regular price£72.88

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