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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4196 products

Palintest Total Alkalinity Pool TesterPalintest Total Alkalinity Pool Tester
Palintest
Palintest Total Alkalinity Pool Tester Sale price£31.62
Save £7.94
Lovibond Silica Combi Pack No. 1/No. 2Lovibond Silica Combi Pack No. 1/No. 2
Lovibond
Lovibond Silica Combi Pack No. 1/No. 2 Sale priceFrom £53.16 Regular price£61.10
Save £4.58
Lovibond Pooltester Active oxygen-pHLovibond Pooltester Active oxygen-pH
Lovibond
Lovibond Pooltester Active oxygen-pH Sale price£30.62 Regular price£35.20
Palintest Arsenic Filter Paper (Labelled Black)
Palintest
Palintest Arsenic Filter Paper (Labelled Black) Sale price£15.00
Sold out
Palintest Hardness LR Tablet Count Method Low Range
Palintest
Palintest Hardness LR Tablet Count Method Low Range Sale price£16.50
Save £7.20
Palintest Kemio Degassing Pump
Palintest
Palintest Kemio Degassing Pump Sale price£40.80 Regular price£48.00
Save £10.65
Palintest/Wagtech Replacement battery for Wagtech Incubator
Palintest
Palintest/Wagtech Replacement battery for Wagtech Incubator Sale price£60.35 Regular price£71.00
Palintest Contour Comparator Kit Manganese HR 0 - 5 mg/L MnPalintest Contour Comparator Kit Manganese HR 0 - 5 mg/L Mn
Palintest
Palintest Contour Comparator Kit Manganese HR 0 - 5 mg/L Mn Sale price£68.88
Save £11.99
Palintest Contour Compatator Kit Nitrate 0 - 15 mg/L NPalintest Contour Compatator Kit Nitrate 0 - 15 mg/L N
Palintest
Palintest Contour Compatator Kit Nitrate 0 - 15 mg/L N Sale price£107.91 Regular price£119.90
Save £3.76
Lovibond Chlorine DPD Checkit Disc 0-1mg/l
Lovibond
Lovibond Chlorine DPD Checkit Disc 0-1mg/l Sale price£25.16 Regular price£28.92
Blue Horizons Granular Shock Chlorine 5kg (Use Test All Water SHGRAN5OL as alternative)Blue Horizons Granular Shock Chlorine 5kg (Use Test All Water SHGRAN5OL as alternative)
Blue Horizons
Blue Horizons Granular Shock Chlorine 5kg (Use Test All Water SHGRAN5OL as alternative) Sale price£40.59
Blue Horizons Non Chlorine Shock 5kg - Use NCLSHOCK5OL as alternativeBlue Horizons Non Chlorine Shock 5kg - Use NCLSHOCK5OL as alternative
Blue Horizons
Blue Horizons Non Chlorine Shock 5kg - Use NCLSHOCK5OL as alternative Sale price£56.63
LaMotte Insta-Test Copper, pH, and Alkalinity Test Strips
LaMotte
LaMotte Insta-Test Copper, pH, and Alkalinity Test Strips Sale price£7.32
Palintest T1 Powder
Palintest
Palintest T1 Powder Sale price£50.00
Save £9.69
Hanna 1131B GENERAL PURPOSE LABORATORY PH ELECTRODE, BNC CONNECTOR
Test All Water
Hanna 1131B GENERAL PURPOSE LABORATORY PH ELECTRODE, BNC CONNECTOR Sale price£184.21 Regular price£193.90
LaMotte Insta-Test Cyanuric Acid Test Strips
LaMotte
LaMotte Insta-Test Cyanuric Acid Test Strips Sale price£6.09
LaMotte Insta-Test Biguanide, Biguanide Shock, Peroxide, Alkalinity, pH, Total Hardness Test Strips
LaMotte
LaMotte Insta-Test Biguanide, Biguanide Shock, Peroxide, Alkalinity, pH, Total Hardness Test Strips Sale price£7.35
LaMotte Insta Test Peroxide Low Range Test Strips
LaMotte
LaMotte Insta Test Peroxide Low Range Test Strips Sale price£19.26
On sale
Palintest COD/150/2M 0-150 mg/L O2 TubetestsPalintest COD/150/2M 0-150 mg/L O2 Tubetests
Palintest
Palintest COD/150/2M 0-150 mg/L O2 Tubetests Sale priceFrom £67.07 Regular price£78.90
On sale
Palintest COD/400/M 0-400 mg/L O2 TubetestsPalintest COD/400/M 0-400 mg/L O2 Tubetests
Palintest
Palintest COD/400/M 0-400 mg/L O2 Tubetests Sale priceFrom £65.45 Regular price£77.00
Save £217.80
Palintest/Wagtech Replacement Incubator
Palintest
Palintest/Wagtech Replacement Incubator Sale price£1,234.20 Regular price£1,452.00
Save £11.64
Palintest Contour Comparator Kit Fluoride 0 - 1.5 mg/L FPalintest Contour Comparator Kit Fluoride 0 - 1.5 mg/L F
Palintest
Palintest Contour Comparator Kit Fluoride 0 - 1.5 mg/L F Sale price£104.76 Regular price£116.40
Sold out
Palintest Lumsio Replacement 15ml Snap Cap Test TubesPalintest Lumsio Replacement 15ml Snap Cap Test Tubes
Palintest
Palintest Lumsio Replacement 15ml Snap Cap Test Tubes Sale price£0.00
Save £3.75
Hanna Instruments HI-781 Marine Nitrate Low Range Handheld Colorimeter, Checker HCHanna Instruments HI-781 Marine Nitrate Low Range Handheld Colorimeter, Checker HC
Hanna Instruments
Hanna Instruments HI-781 Marine Nitrate Low Range Handheld Colorimeter, Checker HC Sale price£71.35 Regular price£75.10

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