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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4197 products

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Lovibond VARIO Ferro F25
Test All Water
Lovibond VARIO Ferro F25 Sale price£31.52 Regular price£36.23
Hanna Instruments
Hanna Instruments HI-93703-58 SILICON OIL SET FOR TURBIDITY METER Sale price£34.68 Regular price£36.50
Save £12.17
Hanna Instruments HI-98703-11 TURBIDITY CALIBRATION SET FOR HI-98703
Hanna Instruments
Hanna Instruments HI-98703-11 TURBIDITY CALIBRATION SET FOR HI-98703 Sale price£231.23 Regular price£243.40
EutechCyberScan pH 620 pH/mV/Ion/ORP Meter
Eutech
EutechCyberScan pH 620 pH/mV/Ion/ORP Meter Sale price£1,050.00
Idexx 120ml Shrink-Banded Vessels without Sodium Thiosulphate (200 pack)Idexx 120ml Shrink-Banded Vessels without Sodium Thiosulphate (200 pack)
IDEXX
Idexx 120ml Shrink-Banded Vessels without Sodium Thiosulphate (200 pack) Sale price£197.00
Save £22.04
Lovibond SD20 ORP MeterLovibond SD20 ORP Meter
Lovibond
Lovibond SD20 ORP Meter Sale price£147.50 Regular price£169.54
Save £347.97
Lovibond TB350 IR Turbidity MeterLovibond TB350 IR Turbidity Meter
Test All Water
Lovibond TB350 IR Turbidity Meter Sale priceFrom £2,328.75 Regular price£2,676.72
Save £259.40
Water Safety Kit MicrobiologyWater Safety Kit Microbiology
Test All Water
Water Safety Kit Microbiology Sale price£1,735.96 Regular price£1,995.36
Save £339.08
DI 20 IncubatorDI 20 Incubator
Test All Water
DI 20 Incubator Sale price£2,269.24 Regular price£2,608.32
LaMotte Lead Screening Test Kit
LaMotte
LaMotte Lead Screening Test Kit Sale price£191.54
Save £46.16
HI-98199 pH, EC, DO digital portable meter (pH electrode included only)
Hanna Instruments
HI-98199 pH, EC, DO digital portable meter (pH electrode included only) Sale price£877.14 Regular price£923.30
Palintest
Palintest Lumiso Case, Foam & Logo (Pool & Spa) Sale price£99.90 Regular price£111.00
PoolLab Urea Liquid Kit
WATER-I.D.
PoolLab Urea Liquid Kit Sale price£25.26
PoolLab Potassium Photometer Tablets
WATER-I.D.
PoolLab Potassium Photometer Tablets Sale price£41.90
PoolLab Chlorine HR KI Photometer Powder Pillows
WATER-I.D.
PoolLab Chlorine HR KI Photometer Powder Pillows Sale price£18.95
Save £12.56
Palintest Contour Comparator Kit Copper/pHPalintest Contour Comparator Kit Copper/pH
Palintest
Palintest Contour Comparator Kit Copper/pH Sale price£113.04 Regular price£125.60
Save £1.24
Palintest DPD 1 Tablets (Pack of 50) (Discontinued)Palintest DPD 1 Tablets (Pack of 50) (Discontinued)
Palintest
Palintest DPD 1 Tablets (Pack of 50) (Discontinued) Sale price£11.16 Regular price£12.40
PrimeLab 2.0 Multi-parameter Water Testing KitPrimeLab 2.0 Multi-parameter Water Testing Kit
WATER-I.D.
PrimeLab 2.0 Multi-parameter Water Testing Kit Sale priceFrom £826.62
Lovibond pH (pH FIX) 7-14 Test Strips
Lovibond
Lovibond pH (pH FIX) 7-14 Test Strips Sale price£31.72
Save £1.71
Lovibond Mini Pooltester DPD No.1/pH High RangeLovibond Mini Pooltester DPD No.1/pH High Range
Lovibond
Lovibond Mini Pooltester DPD No.1/pH High Range Sale price£11.43 Regular price£13.14
Test All Water
Trace2o Urea Photometer Reagents - 100 tests Sale price£254.14
Test All Water
Trece2o Phosphate, ortho Photometer Reagents - 200 tests Sale price£63.56
Test All Water
Trace2o Active Oxygen Reagents Sale price£31.20
Test All Water
Trace2o Manganese Photometer Reagents Sale priceFrom £105.92

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