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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4195 products

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
Save £32.55
Palintest Wagtech Coliform Starter Pack
Palintest
Palintest Wagtech Coliform Starter Pack Sale price£184.45 Regular price£217.00
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 £5.73
Palintest Comparator Disc, Chlorine (Free and Total), 0 - 1 mg/L Cl2
Palintest
Palintest Comparator Disc, Chlorine (Free and Total), 0 - 1 mg/L Cl2 Sale price£32.47 Regular price£38.20
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
Save £54.60
Lovibond Legionella Early Warning Indicative TestLovibond Legionella Early Warning Indicative Test
Lovibond
Lovibond Legionella Early Warning Indicative Test Sale price£365.39 Regular price£419.99
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
LaMotte Test Tube BrushLaMotte Test Tube Brush
Lamotte
LaMotte Test Tube Brush Sale price£3.14
La Motte Peracetic Acid Test Strips - Low Range 0-50La Motte Peracetic Acid Test Strips - Low Range 0-50
Lamotte
La Motte Peracetic Acid Test Strips - Low Range 0-50 Sale price£17.26
Save £3.75
Hanna Instruments-711 Total Chlorine Handheld Colorimeter - Checker®HCHanna Instruments-711 Total Chlorine Handheld Colorimeter - Checker®HC
Hanna Instruments
Hanna Instruments-711 Total Chlorine Handheld Colorimeter - Checker®HC Sale priceFrom £30.00
Save £4.14
Hanna Instruments HI-98302 Pocket TDS Tester (0.00 to 10.00ppt)Hanna Instruments HI-98302 Pocket TDS Tester (0.00 to 10.00ppt)
Hanna Instruments
Hanna Instruments HI-98302 Pocket TDS Tester (0.00 to 10.00ppt) Sale price£78.76 Regular price£82.90
Eutech pH 10.01 Buffer Solution - 480mlEutech pH 10.01 Buffer Solution - 480ml
Eutech
Eutech pH 10.01 Buffer Solution - 480ml Sale price£17.01
Chlorine Free Test Strips [Range 0 - 300ppm] (50Pk)Chlorine Free Test Strips [Range 0 - 300ppm] (50Pk)
DTK-TAW
Chlorine Free Test Strips [Range 0 - 300ppm] (50Pk) Sale price£32.94
Blue Horizons Concentrated Phos Away
Blue Horizons
Blue Horizons Concentrated Phos Away Sale price£17.96
Test All Water BC2 - Chloride HR TitrantTest All Water BC2 - Chloride HR Titrant
DTK-TAW
Test All Water BC2 - Chloride HR Titrant Sale priceFrom £17.56
ALK3 - HR Titrant (EPL)ALK3 - HR Titrant (EPL)
DTK-TAW
ALK3 - HR Titrant (EPL) Sale price£9.79
On sale
Lovibond Alka-P Photometer TabletsLovibond Alka-P Photometer Tablets
Lovibond
Lovibond Alka-P Photometer Tablets Sale priceFrom £26.14 Regular price£30.05
QUANTAB Chloride test strips, low range, 30-600 mg/L, 40 pcs
HACH
QUANTAB Chloride test strips, low range, 30-600 mg/L, 40 pcs Sale price£40.00
HTH DPD No 1 Photometer / Comparator Reagents-100 PACKHTH DPD No 1 Photometer / Comparator Reagents-100 PACK
HtH
HTH DPD No 1 Photometer / Comparator Reagents-100 PACK Sale price£8.00

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