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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6009 products

Save £16.95
Palintest Colour / Turbidity - For Photometer (50 Tablets)
Palintest
Palintest Colour / Turbidity - For Photometer (50 Tablets) Sale price£96.05 Regular price£113.00
Save £14.43
Lovibond Vario Manganese LR 10ml SetLovibond Vario Manganese LR 10ml Set
Lovibond
Lovibond Vario Manganese LR 10ml Set Sale price£96.55 Regular price£110.98
Lovibond TDS Solution 1000ppm
Lovibond
Lovibond TDS Solution 1000ppm Sale price£29.76
Save £19.31
Lovibond SD300 & SD305 Replacement pH Electrode + Temperature Sensor
Lovibond
Lovibond SD300 & SD305 Replacement pH Electrode + Temperature Sensor Sale price£129.21 Regular price£148.52
Lovibond Redox 470mV Calibration Solution
Lovibond
Lovibond Redox 470mV Calibration Solution Sale price£24.08
Sold out
Lovibond SD300 pH Meter Set-1 (Discontinued replaced with 724640)Lovibond SD300 pH Meter Set-1 (Discontinued replaced with 724640)
Lovibond
Lovibond SD300 pH Meter Set-1 (Discontinued replaced with 724640) Sale price£970.20
Save £54.60
Lovibond Legionella Early Warning Indicative TestLovibond Legionella Early Warning Indicative Test
Lovibond
Lovibond Legionella Early Warning Indicative Test Sale price£365.39 Regular price£419.99
Save £2.77
Lovibond Chlorine pH LR PooltesterLovibond Chlorine pH LR Pooltester
Lovibond
Lovibond Chlorine pH LR Pooltester Sale price£18.55 Regular price£21.32
Lovibond Checkit Comparator Kit AluminiumLovibond Checkit Comparator Kit Aluminium
Lovibond
Lovibond Checkit Comparator Kit Aluminium Sale price£67.23
HydroLite® HL102 meter for EC / TDS /Salinity Trace2o
Trace2o
HydroLite® HL102 meter for EC / TDS /Salinity Trace2o Sale price£115.00
Save £1.88
Hanna Instruments-3895 Soil test kit for pH, Nitrogen, Phosphorus and Potassium
Hanna Instruments
Hanna Instruments-3895 Soil test kit for pH, Nitrogen, Phosphorus and Potassium Sale price£35.72 Regular price£37.60
Eutech pH 4 Buffer Solution - 480mlEutech pH 4 Buffer Solution - 480ml
Eutech
Eutech pH 4 Buffer Solution - 480ml Sale price£17.64
Blue Horizons Concentrated Phos Away
Blue Horizons
Blue Horizons Concentrated Phos Away Sale price£17.96
Sold out
Blue Horizons Total Alkalinity Raiser 5kg - Use TAPLUS5OL as alternativeBlue Horizons Total Alkalinity Raiser 5kg - Use TAPLUS5OL as alternative
Blue Horizons
Blue Horizons Total Alkalinity Raiser 5kg - Use TAPLUS5OL as alternative Sale price£18.80
Arsenic Quick Mini for Water, Soil, and Wood testing.
ITS
Arsenic Quick Mini for Water, Soil, and Wood testing. Sale price£20.99
ALK3 - HR Titrant (EPL)ALK3 - HR Titrant (EPL)
DTK-TAW
ALK3 - HR Titrant (EPL) Sale price£9.79
Save £0.64
5ml Plastic Syringe
Palintest
5ml Plastic Syringe Sale price£5.76 Regular price£6.40
IDEXX 120ml Vessels with Antifoam (200 pack)
IDEXX
IDEXX 120ml Vessels with Antifoam (200 pack) Sale price£168.00
PoolLab / Dpd No 1, pH, CYA, TA BundlePoolLab / Dpd No 1, pH, CYA, TA Bundle
TEST ALL WATER
PoolLab / Dpd No 1, pH, CYA, TA Bundle Sale priceFrom £22.00
Save £23.25
Palintest Kemio Chlorine Dioxide Starter PackPalintest Kemio Chlorine Dioxide Starter Pack
Palintest
Palintest Kemio Chlorine Dioxide Starter Pack Sale price£131.75 Regular price£155.00
Save £0.86
Hanna Instruments FILTER HOLDER WITH LUER LOCK HI-740271Hanna Instruments FILTER HOLDER WITH LUER LOCK HI-740271
Hanna Instruments
Hanna Instruments FILTER HOLDER WITH LUER LOCK HI-740271 Sale price£16.34 Regular price£17.20
Save £0.89
Palintest Pooltester Refil Pack 50BPalintest Pooltester Refil Pack 50B
Palintest
Palintest Pooltester Refil Pack 50B Sale price£8.01 Regular price£8.90
PoolLab Iron LR Photometer TabletsPoolLab Iron LR Photometer Tablets
WATER-I.D.
PoolLab Iron LR Photometer Tablets Sale priceFrom £17.00
PrimeLab 2.0 Activation Codes
WATER-I.D.
PrimeLab 2.0 Activation Codes Sale priceFrom £20.00

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