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

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Lovibond Vario Ferro 10mlLovibond Vario Ferro 10ml
Lovibond
Lovibond Vario Ferro 10ml Sale price£24.39 Regular price£28.03
On sale
Lovibond DPD No 2 Comparator / Photometer TabletsLovibond DPD No 2 Comparator / Photometer Tablets
Lovibond
Lovibond DPD No 2 Comparator / Photometer Tablets Sale priceFrom £13.28 Regular price£15.27
Save £7.98
Lovibond COD Vario Vial Test 3-150mg/lLovibond COD Vario Vial Test 3-150mg/l
Lovibond
Lovibond COD Vario Vial Test 3-150mg/l Sale price£53.37 Regular price£61.35
Sold out
Lovibond Alkalinity LR Test Tablets
Lovibond
Lovibond Alkalinity LR Test Tablets Sale price£44.56
Lovibond 6 in 1 (HR) Three Chamber TesterLovibond 6 in 1 (HR) Three Chamber Tester
Lovibond
Lovibond 6 in 1 (HR) Three Chamber Tester Sale price£40.32
Save £20.36
Lovibond 3/40A Chlorine Disc (1.0mg/l)Lovibond 3/40A Chlorine Disc (1.0mg/l)
Lovibond
Lovibond 3/40A Chlorine Disc (1.0mg/l) Sale price£136.26 Regular price£156.62
Save £12.19
Lovibond Comparator 2000+Lovibond Comparator 2000+
Lovibond
Lovibond Comparator 2000+ Sale price£81.61 Regular price£93.80
Eutech Expert CTS Pocket TesterEutech Expert CTS Pocket Tester
Eutech
Eutech Expert CTS Pocket Tester Sale price£75.32
Save £6.71
Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l)Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l)
Lovibond
Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l) Sale price£67.11 Regular price£73.82
CDO1 - Chlorine Dioxide BufferCDO1 - Chlorine Dioxide Buffer
DTK-TAW
CDO1 - Chlorine Dioxide Buffer Sale price£16.01
Sold out
Alkatest Rapid Tablets (Discontinued use code 515570)
DTK-TAW
Alkatest Rapid Tablets (Discontinued use code 515570) Sale price£38.50
Test All Water Permanganate Value Tablets (50 Pack)
DTK-TAW
Test All Water Permanganate Value Tablets (50 Pack) Sale price£15.20
PoolLab Dpd No 1 & pH BundlePoolLab Dpd No 1 & pH Bundle
WATER-I.D.
PoolLab Dpd No 1 & pH Bundle Sale priceFrom £9.00
Save £3.46
Palintest CR-2 Reagent (for chlorite test) (EPL)Palintest CR-2 Reagent (for chlorite test) (EPL)
Palintest
Palintest CR-2 Reagent (for chlorite test) (EPL) Sale price£19.64 Regular price£23.10
PoolLab Hydrogen Peroxide HR Powder PillowsPoolLab Hydrogen Peroxide HR Powder Pillows
WATER-I.D.
PoolLab Hydrogen Peroxide HR Powder Pillows Sale price£17.68
Save £3.33
Palintest pH 7 Buffer Solution - 500ml
Palintest
Palintest pH 7 Buffer Solution - 500ml Sale price£18.87 Regular price£22.20
Pro Swim Total Alkalinity IncreaserPro Swim Total Alkalinity Increaser
Pro-Swim
Pro Swim Total Alkalinity Increaser Sale priceFrom £5.40
Sold out
Pro-Swim Shock ItPro-Swim Shock It
Pro-Swim
Pro-Swim Shock It Sale price£12.53
IDEXX Sample vessels 120ml with Soduim Thiosulfate
IDEXX
IDEXX Sample vessels 120ml with Soduim Thiosulfate Sale price£45.00
Test All Water 3 In 1 Hot Tub Test StripsTest All Water 3 In 1 Hot Tub Test Strips
Test All Water
Test All Water 3 In 1 Hot Tub Test Strips Sale price£5.91
Save £1.23
Hanna Instruments-HI-700-25 Reagents for HI-700 Ammonia Checker
Hanna Instruments
Hanna Instruments-HI-700-25 Reagents for HI-700 Ammonia Checker Sale price£23.47 Regular price£24.70
Idexx Quanti-Tray (100 pack)
IDEXX
Idexx Quanti-Tray (100 pack) Sale price£307.00
Pooltester for pH, Chlorine or BrominePooltester for pH, Chlorine or Bromine
WATER-I.D.
Pooltester for pH, Chlorine or Bromine Sale price£7.50
Lovibond Disinfectant QAC/AmphotericKitLovibond Disinfectant QAC/AmphotericKit
Lovibond
Lovibond Disinfectant QAC/AmphotericKit Sale price£62.32

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