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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5604 products

On sale
Lovibond Nitrite Low Range (LR) Test TabletsLovibond Nitrite Low Range (LR) Test Tablets
Lovibond
Lovibond Nitrite Low Range (LR) Test Tablets Sale priceFrom £17.82
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
Save £5.29
Palintest/Wagtech Membrane Lauryl Sulfate Broth, 38.1gPalintest/Wagtech Membrane Lauryl Sulfate Broth, 38.1g
Palintest
Palintest/Wagtech Membrane Lauryl Sulfate Broth, 38.1g Sale price£30.01 Regular price£35.30
Save £2.84
Palintest Instachlor - PR 150 (250 mg)Palintest Instachlor - PR 150 (250 mg)
Palintest
Palintest Instachlor - PR 150 (250 mg) Sale price£25.56 Regular price£28.40
Lovibond Dechlor TabletsLovibond Dechlor Tablets
Lovibond
Lovibond Dechlor Tablets Sale price£16.43
Save £21.90
Palintest Lumiso Chlorine, Chlorine Dioxide, Ozone Check Standards
Palintest
Palintest Lumiso Chlorine, Chlorine Dioxide, Ozone Check Standards Sale price£124.10 Regular price£146.00
Sold out
PoolLab 1.0 Replacement Cuvette
WATER-I.D.
PoolLab 1.0 Replacement Cuvette Sale price£8.84
Test All Water Spa & Hot Tub Bromine Disinfectant TabletsTest All Water Spa & Hot Tub Bromine Disinfectant Tablets
TEST ALL WATER
Test All Water Spa & Hot Tub Bromine Disinfectant Tablets Sale priceFrom £15.96
Save £2.38
Lovibond Nitrite No.2 250 BottleLovibond Nitrite No.2 250 Bottle
Lovibond
Lovibond Nitrite No.2 250 Bottle Sale price£15.93 Regular price£18.31
Lovibond Ammonia No 1 & Ammonia No 2 Pack (250)Lovibond Ammonia No 1 & Ammonia No 2 Pack (250)
Lovibond
Lovibond Ammonia No 1 & Ammonia No 2 Pack (250) Sale price£67.06
LaMotte Insta-Test Phosphate Test StripsLaMotte Insta-Test Phosphate Test Strips
LaMotte
LaMotte Insta-Test Phosphate Test Strips Sale price£11.50
Save £3.21
Palintest Chlorine/pH PooltesterPalintest Chlorine/pH Pooltester
Palintest
Palintest Chlorine/pH Pooltester Sale price£18.19 Regular price£21.40
Water-I.D Alkatest Rapid 100 TabletsWater-I.D Alkatest Rapid 100 Tablets
WATER-I.D.
Water-I.D Alkatest Rapid 100 Tablets Sale price£14.45
TH3 - Hardness LR Titrant
DTK-TAW
TH3 - Hardness LR Titrant Sale price£11.31
TH2 - Total Hardness BufferTH2 - Total Hardness Buffer
DTK-TAW
TH2 - Total Hardness Buffer Sale price£6.65
Save £19.80
Palintest DPD No 3 LiquidPalintest DPD No 3 Liquid
Palintest
Palintest DPD No 3 Liquid Sale price£112.20 Regular price£132.00
Lovibond DPD 1 Liquid Reagent Solution
Lovibond
Lovibond DPD 1 Liquid Reagent Solution Sale price£22.61
Lovibond AF431 Sulphate KitLovibond AF431 Sulphate Kit
Lovibond
Lovibond AF431 Sulphate Kit Sale price£71.32
Save £18.00
Palintest Lumiso Expert Check Standards
Palintest
Palintest Lumiso Expert Check Standards Sale price£102.00 Regular price£120.00
Save £3.63
Lovibond Vario Chlorine Free DPD 10mlLovibond Vario Chlorine Free DPD 10ml
Lovibond
Lovibond Vario Chlorine Free DPD 10ml Sale price£24.30 Regular price£27.93
TH5 - Total Hardness IndicatorTH5 - Total Hardness Indicator
DTK-TAW
TH5 - Total Hardness Indicator Sale price£19.89
Save £12.55
Palintest Contour Comparator Kit Chlorine (0-5mg/l Cl2)Palintest Contour Comparator Kit Chlorine (0-5mg/l Cl2)
Palintest
Palintest Contour Comparator Kit Chlorine (0-5mg/l Cl2) Sale price£71.15 Regular price£83.70
Save £5.76
Palintest Contour Comparator Disc (Free & Total Chlorine)Palintest Contour Comparator Disc (Free & Total Chlorine)
Palintest
Palintest Contour Comparator Disc (Free & Total Chlorine) Sale price£32.64 Regular price£38.40
On sale
Palintest Chemical Oxygen Demand (COD) Tubetests. 50 - 2000 mg/L O2Palintest Chemical Oxygen Demand (COD) Tubetests. 50 - 2000 mg/L O2
Palintest
Palintest Chemical Oxygen Demand (COD) Tubetests. 50 - 2000 mg/L O2 Sale priceFrom £60.86 Regular price£71.60

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