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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4161 products

Lovibond Cyanuric Acid TabletsLovibond Cyanuric Acid Tablets
Lovibond
Lovibond Cyanuric Acid Tablets Sale priceFrom £23.70
IDEXX Colilert and Colilert-18 P/A Comparator
IDEXX
IDEXX Colilert and Colilert-18 P/A Comparator Sale price£53.50
Save £11.37
Palintest COD/2000/M 0-2000 mg/L O2 TubetestPalintest COD/2000/M 0-2000 mg/L O2 Tubetest
Palintest
Palintest COD/2000/M 0-2000 mg/L O2 Tubetest Sale price£64.43 Regular price£75.80
Save £18.60
Palintest Lumiso Pool Photometer StandardsPalintest Lumiso Pool Photometer Standards
Palintest
Palintest Lumiso Pool Photometer Standards Sale price£105.40 Regular price£124.00
Save £33.60
Palintest DPD No 1 LiquidPalintest DPD No 1 Liquid
Palintest
Palintest DPD No 1 Liquid Sale priceFrom £21.67
Lovibond Plastic 10ml Cells with capLovibond Plastic 10ml Cells with cap
Lovibond
Lovibond Plastic 10ml Cells with cap Sale priceFrom £3.50
On sale
Lovibond Copper No.1 Test ReagentsLovibond Copper No.1 Test Reagents
Lovibond
Lovibond Copper No.1 Test Reagents Sale priceFrom £55.36 Regular price£63.63
Save £2.01
Palintest pH Rapid Dissolve ReagentsPalintest pH Rapid Dissolve Reagents
Palintest
Palintest pH Rapid Dissolve Reagents Sale price£18.09 Regular price£20.10
Agrichlor Effervescent Chlorine TabletsAgrichlor Effervescent Chlorine Tablets
Agrichlor
Agrichlor Effervescent Chlorine Tablets Sale priceFrom £7.50
Lovibond Checkit Comparator Kit (Chlorine & pH)Lovibond Checkit Comparator Kit (Chlorine & pH)
Lovibond
Lovibond Checkit Comparator Kit (Chlorine & pH) Sale price£94.80
Save £3.43
Lovibond Chloride Tablets BottleLovibond Chloride Tablets Bottle
Lovibond
Lovibond Chloride Tablets Bottle Sale price£22.95 Regular price£26.38
Save £22.50
Palintest Manganese High Range ReagentsPalintest Manganese High Range Reagents
Palintest
Palintest Manganese High Range Reagents Sale price£127.50 Regular price£150.00
Save £26.08
Lovibond Nitrate Vario Tube Test Reagent SetLovibond Nitrate Vario Tube Test Reagent Set
Lovibond
Lovibond Nitrate Vario Tube Test Reagent Set Sale price£174.52 Regular price£200.60
Lovibond Chlorine H.R.Tablets (KI) TabletsLovibond Chlorine H.R.Tablets (KI) Tablets
Lovibond
Lovibond Chlorine H.R.Tablets (KI) Tablets Sale priceFrom £25.06
Sold outSave £0.79
Palintest pH Rapid Dissolve 50 TabletsPalintest pH Rapid Dissolve 50 Tablets
Palintest
Palintest pH Rapid Dissolve 50 Tablets Sale price£7.11 Regular price£7.90
Test All Water Multifunctional Chlorine TabletsTest All Water Multifunctional Chlorine Tablets
TEST ALL WATER
Test All Water Multifunctional Chlorine Tablets Sale priceFrom £10.82
Lovibond DPD 1 High Range TabletsLovibond DPD 1 High Range Tablets
Lovibond
Lovibond DPD 1 High Range Tablets Sale priceFrom £12.09
Save £10.96
Palintest Instachlor - PR 1000 (1.7 g)Palintest Instachlor - PR 1000 (1.7 g)
Palintest
Palintest Instachlor - PR 1000 (1.7 g) Sale price£62.14 Regular price£73.10
Sold out
Lovibond SD90 Salt Hand-Held Meter (replaced with SD30 code 720030)Lovibond SD90 Salt Hand-Held Meter (replaced with SD30 code 720030)
Lovibond
Lovibond SD90 Salt Hand-Held Meter (replaced with SD30 code 720030) Sale price£119.36
Save £6.09
Lovibond DPD 4 Comparator/Photometer ReagentsLovibond DPD 4 Comparator/Photometer Reagents
Lovibond
Lovibond DPD 4 Comparator/Photometer Reagents Sale priceFrom £7.35
On sale
Lovibond DPD Glycine Tablets (For Chlorine Separation)Lovibond DPD Glycine Tablets (For Chlorine Separation)
Lovibond
Lovibond DPD Glycine Tablets (For Chlorine Separation) Sale priceFrom £17.03 Regular price£19.57
IDEXX Colilert for 100ml sampleIDEXX Colilert for 100ml sample
IDEXX
IDEXX Colilert for 100ml sample Sale priceFrom £199.00
Save £12.24
Palintest Alkalinity (Alkavis) TabletsPalintest Alkalinity (Alkavis) Tablets
Palintest
Palintest Alkalinity (Alkavis) Tablets Sale priceFrom £13.39
Save £3.60
Lovibond Pool Test Kit 5 in 1 MiniLovibond Pool Test Kit 5 in 1 Mini
Lovibond
Lovibond Pool Test Kit 5 in 1 Mini Sale price£24.09 Regular price£27.69

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