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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4196 products

IDEXX Enterolert 100 ml sample
IDEXX
IDEXX Enterolert 100 ml sample Sale priceFrom £199.00
Eutech 50 ppm 442 Calibration Conductivity Solution
Eutech
Eutech 50 ppm 442 Calibration Conductivity Solution Sale priceFrom £10.00
Eutech pH 10.01 buffer sachets (NIST traceable)Eutech pH 10.01 buffer sachets (NIST traceable)
Eutech
Eutech pH 10.01 buffer sachets (NIST traceable) Sale price£28.90
Eutech TDS 6+ TDS Meter
Eutech
Eutech TDS 6+ TDS Meter Sale price£417.04
Save £1.75
De-ionised water, 3.75 L
Hanna Instruments
De-ionised water, 3.75 L Sale price£33.25 Regular price£35.00
COMPLETE Home Water Quality Test Kit
ITS
COMPLETE Home Water Quality Test Kit Sale price£21.17
Chlorine Dioxide HR Test Strips [0-100ppm] (50Pk)
DTK-TAW
Chlorine Dioxide HR Test Strips [0-100ppm] (50Pk) Sale price£40.63
Chlorine Free Test Strips [0-6ppm] (50Pk)
DTK-TAW
Chlorine Free Test Strips [0-6ppm] (50Pk) Sale price£32.94
Sold out
Chlorine (DPD No 1 & 3) 250 TabletsChlorine (DPD No 1 & 3) 250 Tablets
Trace2o
Chlorine (DPD No 1 & 3) 250 Tablets Sale price£27.41
Save £12.96
CAB Hazen Scale Disc, 30-70
Lovibond
CAB Hazen Scale Disc, 30-70 Sale price£246.26 Regular price£259.22
Save £12.96
Lovibond CAA Hazen Scale Disc, 0-30
Lovibond
Lovibond CAA Hazen Scale Disc, 0-30 Sale price£246.26 Regular price£259.22
SRB Tube Tests-Sulphate Reducing Dipslide (Box of 10)SRB Tube Tests-Sulphate Reducing Dipslide (Box of 10)
DTK-TAW
SRB Tube Tests-Sulphate Reducing Dipslide (Box of 10) Sale priceFrom £40.37
On sale
Lovibond Buffer pH10 TabletsLovibond Buffer pH10 Tablets
Lovibond
Lovibond Buffer pH10 Tablets Sale priceFrom £21.60 Regular price£24.83
On sale
Lovibond Bromothymol Blue TabletsLovibond Bromothymol Blue Tablets
Lovibond
Lovibond Bromothymol Blue Tablets Sale priceFrom £16.43 Regular price£18.89
Save £13.42
BL-20-2 Blackstone Chemical Pump
Hanna Instruments
BL-20-2 Blackstone Chemical Pump Sale price£254.98 Regular price£268.40
Lovibond
Lovibond Potassium Hydroxide Solution 45% Sale price£51.35 Regular price£59.02
Merck
ART® self-sealing barrier pipette tips Sale price£182.12
AquaSPArkle 02 Gentle LiquidAquaSPArkle 02 Gentle Liquid
Aquasparkle
AquaSPArkle 02 Gentle Liquid Sale price£10.59
Agilent
Ammonium Formate Sale price£181.05
Ammonia Photometer Tablets
Trace2o
Ammonia Photometer Tablets Sale priceFrom £21.08
Lovibond Aluminium 0.05-0.3 mg/l, CP250
Lovibond
Lovibond Aluminium 0.05-0.3 mg/l, CP250 Sale price£77.86
Save £20.36
Lovibond 3/2ARP Chlorine DPD Disc 5.0 - 50 mg/L
Lovibond
Lovibond 3/2ARP Chlorine DPD Disc 5.0 - 50 mg/L Sale price£136.26 Regular price£156.62
Save £20.36
3/126 Lovibond Comparator 2000+ Hydrazine Disc (0-0.5 mg/l)
Lovibond
3/126 Lovibond Comparator 2000+ Hydrazine Disc (0-0.5 mg/l) Sale price£136.26 Regular price£156.62
Lovibond CHECKIT® Comparator Disk, Copper LR, free and total 0-1 mg/L
Lovibond
Lovibond CHECKIT® Comparator Disk, Copper LR, free and total 0-1 mg/L Sale price£25.16

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