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

Save £6.88
Palintest Contour Comparator Disc (Chlorine HR 0mg/l - 50mg/l)
Save £34.05
Palintest/Wagtech Absorbent Pads and Membranes
Palintest
Palintest/Wagtech Absorbent Pads and Membranes Sale price£192.95 Regular price£227.00
Save £7.10
W680.OG.10mm CellW680.OG.10mm Cell
Lovibond
W680.OG.10mm Cell Sale price£47.51 Regular price£54.61
Save £23.06
Lovibond Vario Total Nitrogen LR Set, 50 tests
Lovibond
Lovibond Vario Total Nitrogen LR Set, 50 tests Sale price£154.33 Regular price£177.39
TTC/PDM Dipslides
DTK-TAW
TTC/PDM Dipslides Sale priceFrom £27.32
Save £11.34
Lovibond Vario Molybdate LR Set F10
Lovibond
Lovibond Vario Molybdate LR Set F10 Sale price£75.90 Regular price£87.24
Trace 2O COD (MR) Trace2o
Test All Water DPD No 4 & pH Water Test Block and TabletsTest All Water DPD No 4 & pH Water Test Block and Tablets
On sale
Palintest TDS Calibration Solution 500ml 50PPMPalintest TDS Calibration Solution 500ml 50PPM
Palintest
Palintest TDS Calibration Solution 500ml 50PPM Sale priceFrom £10.00 Regular price£32.90
Lovibond Silica No.2 Tablets FoilLovibond Silica No.2 Tablets Foil
Pro-Swim Calcium Hardness Plus 5kg
DTK-TAW
QA4 Sale price£18.23
DTK-TAW
QA1 - QAC Indicator Sale price£14.73
Pro-Swim All Seasons Algaecide-1ltr
Save £522.60
Palintest Potatest Dual KitPalintest Potatest Dual Kit
Palintest
Palintest Potatest Dual Kit Sale price£2,961.40 Regular price£3,484.00
pH10 Buffer Solution (Coloured)pH10 Buffer Solution (Coloured)
Peracetic Acid 0-2000 Test StripsPeracetic Acid 0-2000 Test Strips
PDM/MAC Dipslides
DTK-TAW
PDM/MAC Dipslides Sale priceFrom £27.32
Save £214.50
Palintest Standard Tubetests Heater
Palintest
Palintest Standard Tubetests Heater Sale price£1,215.50 Regular price£1,430.00
Save £21.75
Palintest Kemio Protective Case
Palintest
Palintest Kemio Protective Case Sale price£123.25 Regular price£145.00
Save £5.91
Palintest Comparator Disc, Iron MR, 0 - 10 mg/L Fe
Save £7.96
Palintest Comparator Disc, Phosphate LR, 0 - 4 mg/L PO 4
On sale
Palintest Chemical Oxgen Demand / 400 TUBETESTSPalintest Chemical Oxgen Demand / 400 TUBETESTS
Palintest
Palintest Chemical Oxgen Demand / 400 TUBETESTS Sale priceFrom £71.40 Regular price£84.00