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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.

4195 products

Milwaukee MW600 PRO Dissolved Oxygen Meter

Milwaukee MW600 PRO Dissolved Oxygen Meter

Milwaukee MW600 PRO Dissolved Oxygen Meter

£328.13

Milwaukee MC720 PRO pH Controller and Pump Kit

Milwaukee MC720 PRO pH Controller and Pump Kit

Milwaukee MC720 PRO pH Controller and Pump Kit

£348.19

Milwaukee MI56P Replacement Electrode for pH55 and pH56 2-in-1 pH / Temperature Testers

Milwaukee MI56P Replacement Electrode for pH55 and pH56 2-in-1 pH / Temperature Testers

Milwaukee MI56P Replacement Electrode for pH55 and pH56 2-in-1 pH / Temperature Testers

£46.88

Milwaukee MA9060 12880 µS/cm Conductivity Calibration Solution

Milwaukee MA9060 12880 µS/cm Conductivity Calibration Solution

£16.44

Milwaukee M10004B pH 4.01 Calibration Solution Sachets (25)

Milwaukee M10004B pH 4.01 Calibration Solution Sachets (25)

£34.19

Milwaukee MW101-SOIL PRO pH Meter

Milwaukee MW101-SOIL PRO pH Meter

Milwaukee MW101-SOIL PRO pH Meter

£292.75

Milwaukee MW11 Digital Total Chlorine Tester

Milwaukee MW11 Digital Total Chlorine Tester

Milwaukee MW11 Digital Total Chlorine Tester

£92.44

Milwaukee M10031B 1413 µS/cm Conductivity Calibration Solution Sachets (25)

Milwaukee M10031B 1413 µS/cm Conductivity Calibration Solution Sachets (25)

£34.19

Milwaukee SE300 Lab Grade Double Junction ORP Platinum Probe

Milwaukee SE300 Lab Grade Double Junction ORP Platinum Probe

£93.81

Milwaukee FRESH-START Starter Solution Sachet Kit for pH Meters and Testers

Milwaukee FRESH-START Starter Solution Sachet Kit for pH Meters and Testers

Milwaukee FRESH-START Starter Solution Sachet Kit for pH Meters and Testers

£34.19

Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable Probe

Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable Probe

Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable Probe

£217.88

Milwaukee TH300 Digital Thermometer

Milwaukee TH300 Digital Thermometer

Milwaukee TH300 Digital Thermometer

£55.75

Milwaukee MA9061 1413 µS/cm Conductivity Solution

Milwaukee MA9061 1413 µS/cm Conductivity Solution

£16.44

$Milwaukee MA887 Digital Salinity Refractometer$ $Milwaukee MA887 Digital Salinity Refractometer$

Milwaukee MA887 Digital Salinity Refractometer

£179.94

Milwaukee MC310 PRO Conductivity (EC) Monitor

Milwaukee MC310 PRO Conductivity (EC) Monitor

Milwaukee MC310 PRO Conductivity (EC) Monitor

£138.06

Milwaukee M10007B pH 7.01 Calibration Solution Sachets (25)

Milwaukee M10007B pH 7.01 Calibration Solution Sachets (25)

£34.19

Milwaukee MC122 PRO pH Controller

Milwaukee MC122 PRO pH Controller

Milwaukee MC122 PRO pH Controller

£206.44

$Milwaukee MA871 Digital Brix Refractometer$ $Milwaukee MA871 Digital Brix Refractometer$

Milwaukee MA871 Digital Brix Refractometer

£235.56

Milwaukee MA911B/2 Lab Grade Double Junction pH Electrode with Extended Cable

Milwaukee MA911B/2 Lab Grade Double Junction pH Electrode with Extended Cable

Milwaukee MA911B/2 Lab Grade Double Junction pH Electrode with Extended Cable

£55.75

Milwaukee SE220 Lab Grade Double Junction pH Probe

Milwaukee SE220 Lab Grade Double Junction pH Probe

Milwaukee SE220 Lab Grade Double Junction pH Probe

£70.94

Milwaukee PH56 PRO Waterproof 2-in-1 pH/Temp Tester with Replaceable Probe

Milwaukee PH56 PRO Waterproof 2-in-1 pH/Temp Tester with Replaceable Probe

Milwaukee PH56 PRO Waterproof 2-in-1 pH/Temp Tester with Replaceable Probe

£126.69

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with ATC & a Replaceable Probe

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with ATC & a Replaceable Probe

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with ATC & a Replaceable Probe

£77.25

Milwaukee EC60 PRO Waterproof 3-in-1 EC / TDS/Temp Tester with Replaceable Probe

Milwaukee EC60 PRO Waterproof 3-in-1 EC / TDS/Temp Tester with Replaceable Probe

Milwaukee EC60 PRO Waterproof 3-in-1 EC / TDS/Temp Tester with Replaceable Probe

£77.25

Milwaukee T76 Waterproof High Range Total Dissolved Solids Pen (TDS)

Milwaukee T76 Waterproof High Range Total Dissolved Solids Pen (TDS)

Milwaukee T76 Waterproof High Range Total Dissolved Solids Pen (TDS)

£48.13

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