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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4198 products

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Lovibond DPD No. 4 Evo TabletsLovibond DPD No. 4 Evo Tablets
Lovibond
Lovibond DPD No. 4 Evo Tablets Sale priceFrom £15.93 Regular price£18.31
Save £27.60
Palintest Replaceable Optics Spare Kit, Turbidity Expert
Palintest
Palintest Replaceable Optics Spare Kit, Turbidity Expert Sale price£156.40 Regular price£184.00
Save £290.25
Palintest Turbidity Expert Combined Kit (Without Lumiso)
Palintest
Palintest Turbidity Expert Combined Kit (Without Lumiso) Sale price£1,644.75 Regular price£1,935.00
Save £1.02
Hanna Instruments HI-740157P 20 plastic pipettes
Hanna Instruments
Hanna Instruments HI-740157P 20 plastic pipettes Sale price£19.38 Regular price£20.40
Save £1.02
Hanna Instruments HI-740143 6 x CTK Graduate Syringe
Hanna Instruments
Hanna Instruments HI-740143 6 x CTK Graduate Syringe Sale price£19.38 Regular price£20.40
Hanna Instruments
Hanna Instruments 16" Gauge Blunt Needle (6pack) Sale price£7.98 Regular price£8.40
Save £0.26
Hanna Instruments HI-740270 Syringe 10mL with Luer LockHanna Instruments HI-740270 Syringe 10mL with Luer Lock
Hanna Instruments
Hanna Instruments HI-740270 Syringe 10mL with Luer Lock Sale price£5.04 Regular price£5.30
Save £0.76
Hanna Instruments HI-740226 Syringe (5ml)
Hanna Instruments
Hanna Instruments HI-740226 Syringe (5ml) Sale price£14.44 Regular price£15.20
Save £4.67
Hanna Instruments Nitrate Reagent, Cadmium Reduction Method
Hanna Instruments
Hanna Instruments Nitrate Reagent, Cadmium Reduction Method Sale price£88.83 Regular price£93.50
Eutech
Eutech Quinhydrone ORP solution, 86 mV, ±30 mV @ 25 ºC, 480 mL Sale price£33.48
Save £2.29
Hanna Instruments HI-7030L/C Conductivity Solution 12880uS - 500ml - with Certificate
Hanna Instruments
Hanna Instruments HI-7030L/C Conductivity Solution 12880uS - 500ml - with Certificate Sale price£43.61 Regular price£45.90
Save £1.82
Hanna Instruments HI-5068 pH 6.86 Technical Buffer Solution, 500ml with certificate
Hanna Instruments
Hanna Instruments HI-5068 pH 6.86 Technical Buffer Solution, 500ml with certificate Sale price£34.68 Regular price£36.50
Save £1.72
Hanna Instruments HI-7009L pH 9.18 Buffer Solution, 500 mL bottle
Hanna Instruments
Hanna Instruments HI-7009L pH 9.18 Buffer Solution, 500 mL bottle Sale price£32.68 Regular price£34.40
Lamotte LaMotte 1480 Turbidity Standard, 0 NTU, ISO/EPA, 60 ml Bottle
LaMotte
Lamotte LaMotte 1480 Turbidity Standard, 0 NTU, ISO/EPA, 60 ml Bottle Sale price£66.80
Laboratory Microbiological Testing -
TEST ALL WATER
Laboratory Microbiological Testing - Sale priceFrom £25.00
Laboratory E.coli/Coliforms & TVC (Potable) Water Analysis
TEST ALL WATER
Laboratory E.coli/Coliforms & TVC (Potable) Water Analysis Sale priceFrom £30.00
Save £1,393.95
Palintest Potalab+ (no Arsenic ) Kit, Wagtech
Palintest
Palintest Potalab+ (no Arsenic ) Kit, Wagtech Sale price£7,899.05 Regular price£9,293.00
Save £37.48
Hanna Instruments HI-97115C Marine Master Waterproof Wireless Multiparameter Photometer KitHanna Instruments HI-97115C Marine Master Waterproof Wireless Multiparameter Photometer Kit
Hanna Instruments
Hanna Instruments HI-97115C Marine Master Waterproof Wireless Multiparameter Photometer Kit Sale price£712.12 Regular price£749.60
Save £26.00
Hanna Instruments HI-97105C Marine Master Photometer KitHanna Instruments HI-97105C Marine Master Photometer Kit
Hanna Instruments
Hanna Instruments HI-97105C Marine Master Photometer Kit Sale price£494.00 Regular price£520.00
Oasis® 67mg Water Purification Tablets
Oasis
Oasis® 67mg Water Purification Tablets Sale price£140.17
Oasis® 167mg Water Purification Tablets
Oasis
Oasis® 167mg Water Purification Tablets Sale price£183.05
Oasis® 33mg Water Purification Tablets
Oasis
Oasis® 33mg Water Purification Tablets Sale price£88.04
Save £89.60
Lovibond MD 200 Chlorine, pH, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ)-EPLLovibond MD 200 Chlorine, pH, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ)-EPL
Lovibond
Lovibond MD 200 Chlorine, pH, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ)-EPL Sale price£599.62 Regular price£689.22
IDEXX Regular Quanti-Tray 51-well rubber insert for Quanti-Tray Sealers
IDEXX
IDEXX Regular Quanti-Tray 51-well rubber insert for Quanti-Tray Sealers Sale price£61.75

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