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.

Filters

Sort by:

6008 products

Save £3.76
Lovibond Bromine Checkit Disc 0-5mg/l
Lovibond
Lovibond Bromine Checkit Disc 0-5mg/l Sale price£25.16 Regular price£28.92
Save £1.91
Hanna Instruments 100 Free Chlorine TestsHanna Instruments 100 Free Chlorine Tests
Hanna Instruments
Hanna Instruments 100 Free Chlorine Tests Sale price£36.39 Regular price£38.30
Hach Free Chlorine DPD Reagent Powder Pillows, 10 mL, pk/100Hach Free Chlorine DPD Reagent Powder Pillows, 10 mL, pk/100
Hach
Hach Free Chlorine DPD Reagent Powder Pillows, 10 mL, pk/100 Sale price£35.65
Eutech™ Elite CTS Pocket Tester - Pin Sensors - Conductivity/TDS/Salinity/Temp.Eutech™ Elite CTS Pocket Tester - Pin Sensors - Conductivity/TDS/Salinity/Temp.
Eutech
Eutech™ Elite CTS Pocket Tester - Pin Sensors - Conductivity/TDS/Salinity/Temp. Sale price£133.38
Eutech™ Elite pH Pocket TesterEutech™ Elite pH Pocket Tester
Eutech
Eutech™ Elite pH Pocket Tester Sale price£137.97
Test All Water CC2 - Chloride LR TitrantTest All Water CC2 - Chloride LR Titrant
DTK-TAW
Test All Water CC2 - Chloride LR Titrant Sale priceFrom £16.58
DTK NRB Tube TestsDTK NRB Tube Tests
DTK-TAW
DTK NRB Tube Tests Sale price£40.37
AquaSPArkle - Ezy-FloatAquaSPArkle - Ezy-Float
Aquasparkle
AquaSPArkle - Ezy-Float Sale price£4.28
Test All Water BC1/CC1 - Chloride IndicatorTest All Water BC1/CC1 - Chloride Indicator
DTK-TAW
Test All Water BC1/CC1 - Chloride Indicator Sale priceFrom £5.81
Aqua Sparkle Spa Clarity CubesAqua Sparkle Spa Clarity Cubes
TEST ALL WATER
Aqua Sparkle Spa Clarity Cubes Sale price£5.82
Test All Water Algae Controller 2ltrTest All Water Algae Controller 2ltr
TEST ALL WATER
Test All Water Algae Controller 2ltr Sale price£12.12
Lovibond Phenol Red Comparator TabletsLovibond Phenol Red Comparator Tablets
Lovibond
Lovibond Phenol Red Comparator Tablets Sale priceFrom £11.95
Universal pH Indicator Strips 0 - 14 Test All WaterUniversal pH Indicator Strips 0 - 14 Test All Water
TEST ALL WATER
Universal pH Indicator Strips 0 - 14 Test All Water Sale price£4.05
HACH Free and total chlorine test strips, 0 - 10 mg/L, 50 tests
Hach
HACH Free and total chlorine test strips, 0 - 10 mg/L, 50 tests Sale price£33.00
Water ID / Rapid Dpd No 1 & pH Rapid Bundle 50 pack
WATER-I.D.
Water ID / Rapid Dpd No 1 & pH Rapid Bundle 50 pack Sale price£8.00
PoolLab Chlorine HR Powder Pack
WATER-I.D.
PoolLab Chlorine HR Powder Pack Sale priceFrom £15.83
Save £6.88
Palintest Plastic Test Tubes Suitable for Lumsio, 3,4,6, Expert Photometers
Palintest
Palintest Plastic Test Tubes Suitable for Lumsio, 3,4,6, Expert Photometers Sale price£39.02 Regular price£45.90
Save £44.10
Palintest Permanganate Value
Palintest
Palintest Permanganate Value Sale price£249.90 Regular price£294.00
Save £273.00
Palintest Turbidity Expert Kit
Palintest
Palintest Turbidity Expert Kit Sale price£1,547.00 Regular price£1,820.00
Hydrosense PRO Ultra Legionella Water Test- Single UseHydrosense PRO Ultra Legionella Water Test- Single Use
Hydrosense
Hydrosense PRO Ultra Legionella Water Test- Single Use Sale price£72.67
PoolLab 2.0 Phosphate HR No.1 Photometer Powder PillowsPoolLab 2.0 Phosphate HR No.1 Photometer Powder Pillows
WATER-I.D.
PoolLab 2.0 Phosphate HR No.1 Photometer Powder Pillows Sale priceFrom £17.25
PoolLab DPD No.2 TabletsPoolLab DPD No.2 Tablets
WATER-I.D.
PoolLab DPD No.2 Tablets Sale price£5.95
Save £27.46
Lovibond Checkit 5 in 1 Pool & Spa Balanced Water KitLovibond Checkit 5 in 1 Pool & Spa Balanced Water Kit
Lovibond
Lovibond Checkit 5 in 1 Pool & Spa Balanced Water Kit Sale price£183.76 Regular price£211.22
Lovibond Hydrogen Peroxide HR Titrant HP2 15 - 500 mg/L H2O2
Lovibond
Lovibond Hydrogen Peroxide HR Titrant HP2 15 - 500 mg/L H2O2 Sale price£11.59

International Delivery

For small orders & export tenders

12,000+ PRODUCTS

From the Market Leaders

Support & Trade Accounts

Contact Us for Support & Trade Accounts

Secure payments

Payments processed securely by Shopify