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.

Filters

Sort by:

4194 products

TH5 - Total Hardness IndicatorTH5 - Total Hardness Indicator
DTK-TAW
TH5 - Total Hardness Indicator Sale price£19.89
On sale
Palintest Kemio Sensors for Chlorine (High Range)Palintest Kemio Sensors for Chlorine (High Range)
Palintest
Palintest Kemio Sensors for Chlorine (High Range) Sale priceFrom £119.85 Regular price£141.00
Save £5.97
Palintest Comparator Disc (pH Phenol red)
Palintest
Palintest Comparator Disc (pH Phenol red) Sale price£33.83 Regular price£39.80
Save £4.10
Lovibond Vario Chlorine Total DPD 10mlLovibond Vario Chlorine Total DPD 10ml
Lovibond
Lovibond Vario Chlorine Total DPD 10ml Sale price£27.44 Regular price£31.54
Save £2.48
Lovibond Universal pH 100 TabletsLovibond Universal pH 100 Tablets
Lovibond
Lovibond Universal pH 100 Tablets Sale price£16.60 Regular price£19.08
Save £2.46
Lovibond D003 TTC/ROSE - Yeasts, Moulds, Fungi & TVCLovibond D003 TTC/ROSE - Yeasts, Moulds, Fungi & TVC
Lovibond
Lovibond D003 TTC/ROSE - Yeasts, Moulds, Fungi & TVC Sale price£16.46 Regular price£18.92
On sale
Lovibond DI 10 IncubatorLovibond DI 10 Incubator
Lovibond
Lovibond DI 10 Incubator Sale priceFrom £454.42 Regular price£522.32
Lovibond Comparator 2000+ chlorine Disc 0.5 - 6.0 mg/l
Lovibond
Lovibond Comparator 2000+ chlorine Disc 0.5 - 6.0 mg/l Sale price£136.26
Lovibond AF416 Calcium Hardness KitLovibond AF416 Calcium Hardness Kit
Lovibond
Lovibond AF416 Calcium Hardness Kit Sale price£51.97
Save £16.41
Lovibond SD10 pH MeterLovibond SD10 pH Meter
Lovibond
Lovibond SD10 pH Meter Sale price£139.00 Regular price£155.41
Oasis 3000 Water Purification TabletsOasis 3000 Water Purification Tablets
Oasis
Oasis 3000 Water Purification Tablets Sale priceFrom £20.85
Save £22.03
Water-I.D Pooltester for pH, Chlorine or Bromine & AlkalinityWater-I.D Pooltester for pH, Chlorine or Bromine & Alkalinity
WATER-I.D.
Water-I.D Pooltester for pH, Chlorine or Bromine & Alkalinity Sale price£8.57 Regular price£30.60
S2 - Sulphite LR Titrant
DTK-TAW
S2 - Sulphite LR Titrant Sale price£11.23
Palintest plastic stirring rod (single rod)Palintest plastic stirring rod (single rod)
Palintest
Palintest plastic stirring rod (single rod) Sale price£3.25
On sale
Palintest Ammonia TubetestsPalintest Ammonia Tubetests
Palintest
Palintest Ammonia Tubetests Sale priceFrom £81.52 Regular price£95.90
Save £10.06
Lovibond Total Hardness TabletsLovibond Total Hardness Tablets
Lovibond
Lovibond Total Hardness Tablets Sale priceFrom £14.61 Regular price£24.67
Save £0.70
Lovibond Light Shielding Ring for round vials 24mm, set of 12Lovibond Light Shielding Ring for round vials 24mm, set of 12
Lovibond
Lovibond Light Shielding Ring for round vials 24mm, set of 12 Sale price£4.70 Regular price£5.40
Lovibond Chlorine Standard set MD100, MD110, MD200Lovibond Chlorine Standard set MD100, MD110, MD200
Lovibond
Lovibond Chlorine Standard set MD100, MD110, MD200 Sale price£67.11
Conductivity Standard Solution 1413 µSConductivity Standard Solution 1413 µS
DTK-TAW
Conductivity Standard Solution 1413 µS Sale priceFrom £6.56
Save £4.29
Palintest Bromine Photometer 250 ReagentsPalintest Bromine Photometer 250 Reagents
Palintest
Palintest Bromine Photometer 250 Reagents Sale price£24.31 Regular price£28.60
LaMotte ColorQ 2x, Pro 7LaMotte ColorQ 2x, Pro 7
LaMotte
LaMotte ColorQ 2x, Pro 7 Sale price£220.00
Kuntze Zirkon pH Sensor
Kuntze Instruments
Kuntze Zirkon pH Sensor Sale price£97.44
LaMotte Insta-Test Magnesium Test Strips
LaMotte
LaMotte Insta-Test Magnesium Test Strips Sale price£17.00
Save £5.52
Lovibond Chloride Tablets
Lovibond
Lovibond Chloride Tablets Sale price£36.96 Regular price£42.48

International Delivery

For small orders & export tenders

12,000+ PRODUCTS

From the Market Leaders

Support & Trade Accounts

Contact Us for Support & Trade Accounts

Secure payments

Online payments securely administed by Shopify