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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4197 products

Waterproof ECTestr11 Dual Range Tester
Test All Water
Waterproof ECTestr11 Dual Range Tester Sale price£99.20
Waterproof pHTestr20
Test All Water
Waterproof pHTestr20 Sale price£113.25
Waterproof pHTestr10
Test All Water
Waterproof pHTestr10 Sale price£99.20
Waterproof EcoTestr SaltWaterproof EcoTestr Salt
Test All Water
Waterproof EcoTestr Salt Sale price£74.25
Waterproof EcoTestr TDS High
Test All Water
Waterproof EcoTestr TDS High Sale price£61.07
Waterproof EcoTestr EC High
Test All Water
Waterproof EcoTestr EC High Sale price£61.07
Waterproof EcoTestr EC Low
Test All Water
Waterproof EcoTestr EC Low Sale price£61.07
Eutech Waterproof EcoTestr pH 1 - No ATC
Eutech
Eutech Waterproof EcoTestr pH 1 - No ATC Sale price£53.60
Primelab Phenol No 2 TabletsPrimelab Phenol No 2 Tablets
WATER-I.D.
Primelab Phenol No 2 Tablets Sale priceFrom £11.90
Primelab Phenol No 1 TabletsPrimelab Phenol No 1 Tablets
WATER-I.D.
Primelab Phenol No 1 Tablets Sale priceFrom £11.90
Orion AQUAfast IV Turbidimeter Kit (Thermo Scientific AQ4500)
Test All Water
Orion AQUAfast IV Turbidimeter Kit (Thermo Scientific AQ4500) Sale price£1,600.00
Lovibond VARIO Nitri 3 F25
Lovibond
Lovibond VARIO Nitri 3 F25 Sale price£0.00
Hach Chloride Standard Solution, 1000 mg/L, 500 mL
Hach
Hach Chloride Standard Solution, 1000 mg/L, 500 mL Sale price£85.49
Hach
Hach Sulphate solution 500ml Sale price£44.29
Hach
Hach Nitrites solution 500ml Sale price£48.41
Hach
Hach Phosphate solution 500ml Sale price£53.56
Hach
Hach Total hardness set Sale price£210.12
Hach Reagent set, alkalinity, 0 - 400 mg/L
Hach
Hach Reagent set, alkalinity, 0 - 400 mg/L Sale price£101.36
HACH Chlorine, total, Reagent Powder Pillows, 100/pk, 10 mLHACH Chlorine, total, Reagent Powder Pillows, 100/pk, 10 mL
Hach
HACH Chlorine, total, Reagent Powder Pillows, 100/pk, 10 mL Sale price£43.26
Hach Fluoride reagent solution, 0.02-2.00 mg/L F (500 mL)
Hach
Hach Fluoride reagent solution, 0.02-2.00 mg/L F (500 mL) Sale price£56.65
Hach
Hach Manganese set Sale price£148.32
Hach
Hach Phosphate set Sale price£56.65
Hach
Hach Nitrates set Sale price£175.10
Hach Aluminium Reagent Set, Powder Pillows, 0.008-0.800mg/L Al
Hach
Hach Aluminium Reagent Set, Powder Pillows, 0.008-0.800mg/L Al Sale price£190.55

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