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 Powder Pack Sulfate 4 10mlLovibond Vario Powder Pack Sulfate 4 10ml
Lovibond
Lovibond Vario Powder Pack Sulfate 4 10ml Sale price£37.61 Regular price£43.23
Save £2.82
Lovibond Universal pH Tablets Foil 250
Lovibond
Lovibond Universal pH Tablets Foil 250 Sale price£28.10 Regular price£30.92
Save £7.00
Lovibond Tube Test D008 SRB- Sulphate Reducing DipslideLovibond Tube Test D008 SRB- Sulphate Reducing Dipslide
Lovibond
Lovibond Tube Test D008 SRB- Sulphate Reducing Dipslide Sale price£46.81 Regular price£53.81
Save £117.56
Lovibond SD 305 pH/ORP (Set 1)
Lovibond
Lovibond SD 305 pH/ORP (Set 1) Sale price£786.74 Regular price£904.30
On sale
Lovibond Molybdate Combi Pack No 1 & 2 HRLovibond Molybdate Combi Pack No 1 & 2 HR
Lovibond
Lovibond Molybdate Combi Pack No 1 & 2 HR Sale priceFrom £40.67 Regular price£46.75
On sale
Lovibond Molybdate No.2 Tablets - HRLovibond Molybdate No.2 Tablets - HR
Lovibond
Lovibond Molybdate No.2 Tablets - HR Sale priceFrom £25.84
Lovibond KS137 - PA3 - Barium Chloride SolutionLovibond KS137 - PA3 - Barium Chloride Solution
Lovibond
Lovibond KS137 - PA3 - Barium Chloride Solution Sale price£6.96
Save £1.35
Lovibond DPD No 1 Free Chlorine Liquid Reagent BLovibond DPD No 1 Free Chlorine Liquid Reagent B
Lovibond
Lovibond DPD No 1 Free Chlorine Liquid Reagent B Sale price£9.05 Regular price£10.40
Save £4.73
Lovibond D007 TTC/PDM - Pseudomonas species & TVCLovibond D007 TTC/PDM - Pseudomonas species & TVC
Lovibond
Lovibond D007 TTC/PDM - Pseudomonas species & TVC Sale price£31.63 Regular price£36.36
Save £1.35
Lovibond DPD No 1 Free Chlorine Liquid Reagent A
Lovibond
Lovibond DPD No 1 Free Chlorine Liquid Reagent A Sale price£9.05 Regular price£10.40
Save £7.98
Lovibond COD Vials Mercury Free 0-150mg/lLovibond COD Vials Mercury Free 0-150mg/l
Lovibond
Lovibond COD Vials Mercury Free 0-150mg/l Sale price£53.37 Regular price£61.35
Save £20.36
Lovibond Comparator 2000+ chlorine Disc 0.1 - 2.0 mg/l
Lovibond
Lovibond Comparator 2000+ chlorine Disc 0.1 - 2.0 mg/l Sale price£136.26 Regular price£156.62
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 priceFrom £10.00
Save £4.51
Hanna Instruments-771 Chlorine Ultra High Range Handheld Colorimeter, Checker®HCHanna Instruments-771 Chlorine Ultra High Range Handheld Colorimeter, Checker®HC
Hanna Instruments
Hanna Instruments-771 Chlorine Ultra High Range Handheld Colorimeter, Checker®HC Sale price£85.69 Regular price£90.20
Save £1.88
Hanna Instruments-3895 Soil test kit for pH, Nitrogen, Phosphorus and Potassium
Hanna Instruments
Hanna Instruments-3895 Soil test kit for pH, Nitrogen, Phosphorus and Potassium Sale price£35.72 Regular price£37.60
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
Chlorine Total Test Strips [0-10ppm] (50Pk)Chlorine Total Test Strips [0-10ppm] (50Pk)
DTK-TAW
Chlorine Total Test Strips [0-10ppm] (50Pk) Sale price£32.94
Chlorine Total, Low Range Test Strips - Range 0-10
Lamotte
Chlorine Total, Low Range Test Strips - Range 0-10 Sale price£11.75
Sold out
Blue Horizons pH Plus 5kg - pH Increaser for Pools & Spas - Use PHPLUS5OL as alternativeBlue Horizons pH Plus 5kg - pH Increaser for Pools & Spas - Use PHPLUS5OL as alternative
Blue Horizons
Blue Horizons pH Plus 5kg - pH Increaser for Pools & Spas - Use PHPLUS5OL as alternative Sale price£18.12
Arsenic Quick Mini for Water, Soil, and Wood testing.
ITS
Arsenic Quick Mini for Water, Soil, and Wood testing. Sale price£20.99
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

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