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:

4196 products

Thermo Scientific Eutech™ COND 6+
Eutech
Thermo Scientific Eutech™ COND 6+ Sale price£304.11
Thermo Scientific Eutech™ Elite Conductivity/TDS/Salinity/Temp pocket tester - cup sensor.Thermo Scientific Eutech™ Elite Conductivity/TDS/Salinity/Temp pocket tester - cup sensor.
Eutech
Thermo Scientific Eutech™ Elite Conductivity/TDS/Salinity/Temp pocket tester - cup sensor. Sale price£137.03
Trace2o Ammonia
Trace2o
Trace2o Ammonia Sale priceFrom £69.24
Save £3.99
Lovibond Total Hardness Tablets BottleLovibond Total Hardness Tablets Bottle
Lovibond
Lovibond Total Hardness Tablets Bottle Sale price£26.72 Regular price£30.71
Save £4.55
Lovibond Thymol Blue Photometer Tablets
Lovibond
Lovibond Thymol Blue Photometer Tablets Sale price£30.44 Regular price£34.99
Save £7.68
Palintest TDS Calibration Solution 500ml 300 PPM
Palintest
Palintest TDS Calibration Solution 500ml 300 PPM Sale price£31.32 Regular price£39.00
Trace2o
Sterile absorbent pads - 47mm Trace2o Sale priceFrom £14.42
Sulphite Test Strips (10-500ppm) (50Pk)
DTK-TAW
Sulphite Test Strips (10-500ppm) (50Pk) Sale price£38.50
Lovibond Sulphite No.2 L.R.Tablets
Lovibond
Lovibond Sulphite No.2 L.R.Tablets Sale price£19.78
Lovibond Sulphite No.1 Tablets
Lovibond
Lovibond Sulphite No.1 Tablets Sale price£22.05
Spa ScaleAwaySpa ScaleAway
TEST ALL WATER
Spa ScaleAway Sale price£8.50
Spa Cartridge CleanerSpa Cartridge Cleaner
TEST ALL WATER
Spa Cartridge Cleaner Sale price£8.50
Lovibond Silica No.1 Tablets FoilLovibond Silica No.1 Tablets Foil
Lovibond
Lovibond Silica No.1 Tablets Foil Sale price£29.12
Pool Check 3 in 1Pool Check 3 in 1
ITS
Pool Check 3 in 1 Sale price£6.25
Johnson Analytica pH Indicator Strips 2.0 - 9.0Johnson Analytica pH Indicator Strips 2.0 - 9.0
Johnson Analytica
Johnson Analytica pH Indicator Strips 2.0 - 9.0 Sale price£3.84
pH Test Strips 1-14 (50Pk)pH Test Strips 1-14 (50Pk)
DTK-TAW
pH Test Strips 1-14 (50Pk) Sale price£12.20
Save £6.87
Lovibond PHMB 250 Test Tablets
Lovibond
Lovibond PHMB 250 Test Tablets Sale price£46.01 Regular price£52.88
Save £0.78
Palintest/Wagtech Universal Spoons, 5 packPalintest/Wagtech Universal Spoons, 5 pack
Palintest
Palintest/Wagtech Universal Spoons, 5 pack Sale price£4.42 Regular price£5.20
Save £18.65
PD250 Dispenser Set 1 - Free ChlorinePD250 Dispenser Set 1 - Free Chlorine
Lovibond
PD250 Dispenser Set 1 - Free Chlorine Sale price£124.82 Regular price£143.47
Palintest Phenol Red Disc (Discontinued)Palintest Phenol Red Disc (Discontinued)
Palintest
Palintest Phenol Red Disc (Discontinued) Sale price£52.00
Save £8.56
Palintest Contour Comparator Kit, DPD 4 Ozone 0-1mg/L O3Palintest Contour Comparator Kit, DPD 4 Ozone 0-1mg/L O3
Palintest
Palintest Contour Comparator Kit, DPD 4 Ozone 0-1mg/L O3 Sale price£77.04 Regular price£85.60
Save £3.64
Palintest Deionised Water 500mlPalintest Deionised Water 500ml
Palintest
Palintest Deionised Water 500ml Sale price£20.66 Regular price£24.30
vendor-unknown
Palintest Chlorine COMP, DPD Starter Kit, 0-2 mgl Sale price£63.47
On sale
Palintest Chemical Oxygen Demand (COD) Tubetests - Containing Mercury for high Chloride 50 - 2000 mg/L 02
Palintest
Palintest Chemical Oxygen Demand (COD) Tubetests - Containing Mercury for high Chloride 50 - 2000 mg/L 02 Sale priceFrom £61.63 Regular price£72.50

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

Online payments securely administed by Shopify