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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Thermo Scientific Chemicals Calconcarboxylic acid, indicator grade
Thermoscientific
Thermo Scientific Chemicals Calconcarboxylic acid, indicator grade Sale price£75.00
Hanna Instruments HI-93750-01 Potassium Reagent, Turbidimetric Method
Hanna Instruments
Hanna Instruments HI-93750-01 Potassium Reagent, Turbidimetric Method Sale price£159.85
Milwaukee EC45 EC/TDS Nutrient MeterMilwaukee EC45 EC/TDS Nutrient Meter
Milwaukee
Milwaukee EC45 EC/TDS Nutrient Meter Sale price£136.81
Milwaukee MI0041 PRO Magnetic StirrerMilwaukee MI0041 PRO Magnetic Stirrer
Milwaukee
Milwaukee MI0041 PRO Magnetic Stirrer Sale price£98.75
Save £183.70
Hanna Instruments HI-802 Iris Visible Spectrophotometer with Barcode ReaderHanna Instruments HI-802 Iris Visible Spectrophotometer with Barcode Reader
Hanna Instruments
Hanna Instruments HI-802 Iris Visible Spectrophotometer with Barcode Reader Sale price£3,480.00 Regular price£3,663.70
HACH DR6000 UV-VIS Spectrophotometer with RFID TechnologyHACH DR6000 UV-VIS Spectrophotometer with RFID Technology
HACH
HACH DR6000 UV-VIS Spectrophotometer with RFID Technology Sale price£12,010.00
Lovibond KS441- Hydrochloric Acid 0.1N
Lovibond
Lovibond KS441- Hydrochloric Acid 0.1N Sale price£12.92
WATER-I.D.
PoolLab 2.0 Accessories Sale priceFrom £2.00
Kuntze Instruments
Kuntze Neon Dis Krypton Board Mounted System [ASR] 85..230V AC Sale price£2,892.00
Zirkon pH Fluoride SensorZirkon pH Fluoride Sensor
Kuntze Instruments
Zirkon pH Fluoride Sensor Sale price£166.00
Save £3.65
Hanna Instruments HI-94754A-25 COD low range EPA approved Dichromate Method with Barcode
Hanna Instruments
Hanna Instruments HI-94754A-25 COD low range EPA approved Dichromate Method with Barcode Sale price£69.35 Regular price£73.00
Kuntze Instruments
Kuntze Sensor Detector,pH Sensor,PTFE Junction,Tepox Gel,S8 Plug (Swivel PG 13.5),L:120,Fluoride Resistant, Sale price£166.00
Lovibond
Lovibond UV Pen Lamp, 254 nm Sale price£852.75 Regular price£980.17
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Hanna Instruments HI-97710C pH, Free & Total Chlorine Portable Photometer Kit
Hanna Instruments
Hanna Instruments HI-97710C pH, Free & Total Chlorine Portable Photometer Kit Sale price£707.15
Save £26.44
Hanna Instruments HI-97734 Free & total Chlorine High Range portable photometer
Hanna Instruments
Hanna Instruments HI-97734 Free & total Chlorine High Range portable photometer Sale price£502.46 Regular price£528.90
HACH FerroVer iron reagent powder pillows, 5 mL, pk/1000
HACH
HACH FerroVer iron reagent powder pillows, 5 mL, pk/1000 Sale price£270.00
Whatman Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 mmWhatman Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 mm
SLS
Whatman Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 mm Sale price£175.00
Milwaukee MI57P Replacement Electrode for ORP57 ORP TesterMilwaukee MI57P Replacement Electrode for ORP57 ORP Tester
Milwaukee
Milwaukee MI57P Replacement Electrode for ORP57 ORP Tester Sale price£92.44
Milwaukee MA860 Galvanic Dissolved Oxygen Probe
Milwaukee
Milwaukee MA860 Galvanic Dissolved Oxygen Probe Sale price£395.38
Milwaukee MA73075 EC/TDS Replacement Electrode for C65 EC Tester and T75 TDS TesterMilwaukee MA73075 EC/TDS Replacement Electrode for C65 EC Tester and T75 TDS Tester
Milwaukee
Milwaukee MA73075 EC/TDS Replacement Electrode for C65 EC Tester and T75 TDS Tester Sale price£38.00
Milwaukee MW170 MAX EC/TDS/NaCl/Temp Logging Bench MeterMilwaukee MW170 MAX EC/TDS/NaCl/Temp Logging Bench Meter
Milwaukee
Milwaukee MW170 MAX EC/TDS/NaCl/Temp Logging Bench Meter Sale price£842.38
Milwaukee MA881 Digital Refractometer for Invert SugarMilwaukee MA881 Digital Refractometer for Invert Sugar
Milwaukee
Milwaukee MA881 Digital Refractometer for Invert Sugar Sale price£235.56
Milwaukee MC410 PRO Total Dissolved solids (TDS) MonitorMilwaukee MC410 PRO Total Dissolved solids (TDS) Monitor
Milwaukee
Milwaukee MC410 PRO Total Dissolved solids (TDS) Monitor Sale price£138.06
Milwaukee MI0003 Plastic Stopper Caps for 10 mL Glass Cuvettes
Milwaukee
Milwaukee MI0003 Plastic Stopper Caps for 10 mL Glass Cuvettes Sale price£8.88

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