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

IDEXX Legiolert PretreatmentIDEXX Legiolert Pretreatment
IDEXX
IDEXX Legiolert Pretreatment Sale price£38.00
IDEXX Legiolert 20-pack
IDEXX
IDEXX Legiolert 20-pack Sale price£501.00
IDEXX Colisure for 100ml
IDEXX
IDEXX Colisure for 100ml Sale priceFrom £175.00
LaMotte
Lamotte TURBIDITY STANDARD 10.0 NTU 2020T 60 ML 8759 Sale price£66.82
LaMotte
Lamotte TURBIDITY STANDARD1.0 NTU 2020T 60 ML 8758 Sale price£66.80
Hydrosense ONE Ultra Legionella Swab TestHydrosense ONE Ultra Legionella Swab Test
Hydrosense
Hydrosense ONE Ultra Legionella Swab Test Sale price£58.25
Hydrosense ONE Multi Legionella Industrial KitHydrosense ONE Multi Legionella Industrial Kit
Hydrosense
Hydrosense ONE Multi Legionella Industrial Kit Sale price£292.74
Hydrosense ONE Ultra Legionella Industrial KitHydrosense ONE Ultra Legionella Industrial Kit
Hydrosense
Hydrosense ONE Ultra Legionella Industrial Kit Sale price£325.50
Hydrosense ONE Multi Legionella Water TestHydrosense ONE Multi Legionella Water Test
Hydrosense
Hydrosense ONE Multi Legionella Water Test Sale price£66.65
Hydrosense PRO Ultra Legionella Swab Test- Single UseHydrosense PRO Ultra Legionella Swab Test- Single Use
Hydrosense
Hydrosense PRO Ultra Legionella Swab Test- Single Use Sale price£66.08
Save £13.01
Lovibond Hardness Ca Mg MR TTLovibond Hardness Ca Mg MR TT
Lovibond
Lovibond Hardness Ca Mg MR TT Sale price£87.06 Regular price£100.07
Save £410.05
Lovibond TC 140G CabinetLovibond TC 140G Cabinet
Lovibond
Lovibond TC 140G Cabinet Sale price£2,744.16 Regular price£3,154.21
Zirkon DES Sensor; Double Platinum KCl; Shaft L: 120mmZirkon DES Sensor; Double Platinum KCl; Shaft L: 120mm
Kuntze Instruments
Zirkon DES Sensor; Double Platinum KCl; Shaft L: 120mm Sale price£325.50
TEST ALL WATER
DPD 'failed collection, no Item to collect' Sale price£0.00
Lovibond Ozone 3/67 Test Kit
Lovibond
Lovibond Ozone 3/67 Test Kit Sale price£281.45
On sale
Lovibond Chloride 0.5 - 25 mg/lLovibond Chloride 0.5 - 25 mg/l
Lovibond
Lovibond Chloride 0.5 - 25 mg/l Sale priceFrom £47.30 Regular price£54.37
LaMotte Insta-Test 2984 Hydrogen Peroxide HR Test Strip, 0-90ppm Range
LaMotte
LaMotte Insta-Test 2984 Hydrogen Peroxide HR Test Strip, 0-90ppm Range Sale price£6.32
pH 10 Buffer Tablets
TEST ALL WATER
pH 10 Buffer Tablets Sale price£46.00
pH 7 Buffer TabletspH 7 Buffer Tablets
TEST ALL WATER
pH 7 Buffer Tablets Sale price£46.00
Galvanic Dissolved Oxygen Electrode with ATC, 3m cable (for DO 6+, DO 700)
TEST ALL WATER
Galvanic Dissolved Oxygen Electrode with ATC, 3m cable (for DO 6+, DO 700) Sale price£443.74
2-Cell Conductivity/ATC Electrode, 10.0 cell constant, SS Sensor, Epoxy-Body (for 700 & 2700 series)
TEST ALL WATER
2-Cell Conductivity/ATC Electrode, 10.0 cell constant, SS Sensor, Epoxy-Body (for 700 & 2700 series) Sale price£227.14
2 Stainless Steel Rings Ultem-body Electrode with ATC, cell constant K=1.0, 16x144 mm, 8-pin connector, 3m cable (for CON 600, CON 610, PC 650, PCD 650)
TEST ALL WATER
2 Stainless Steel Rings Ultem-body Electrode with ATC, cell constant K=1.0, 16x144 mm, 8-pin connector, 3m cable (for CON 600, CON 610, PC 650, PCD 650) Sale price£210.92
2-Cell Conductivity/ATC Electrode, 0.1 cell constant, SS Sensor, Epoxy-Body (for 700 & 2700 series)
TEST ALL WATER
2-Cell Conductivity/ATC Electrode, 0.1 cell constant, SS Sensor, Epoxy-Body (for 700 & 2700 series) Sale price£201.80
2-Cell Conductivity/ATC Electrode, 10.0 cell constant, Platinum Sensor, Epoxy-Body (for CON 150, CON 450, PC 450)
TEST ALL WATER
2-Cell Conductivity/ATC Electrode, 10.0 cell constant, Platinum Sensor, Epoxy-Body (for CON 150, CON 450, PC 450) Sale price£190.40

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