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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4192 products

Lovibond Calcium Tablet Count Foil - 250 TabletsLovibond Calcium Tablet Count Foil - 250 Tablets
Oasis 1000 Water Purification TabletsOasis 1000 Water Purification Tablets
Test All Water Hydrogen Peroxide LR Strips [0-100ppm] (100Pk)Test All Water Hydrogen Peroxide LR Strips [0-100ppm] (100Pk)
Cled Agar and MacConkey3 Agar
Water-ID DPD No.1 Rapid TabletsWater-ID DPD No.1 Rapid Tablets
Palintest Permanganate Value 0-30+mg/L (Discontinued) - Contact us for alternative products
Lovibond Potassium Iodide Tablets BottleLovibond Potassium Iodide Tablets Bottle
Lovibond DPD No 3 High Range TabletsLovibond DPD No 3 High Range Tablets
Save £5.29
Palintest/Wagtech Membrane Lauryl Sulfate Broth, 38.1gPalintest/Wagtech Membrane Lauryl Sulfate Broth, 38.1g
On sale
Palintest Kemio Sensors for Peracetic Acid (PAA)Palintest Kemio Sensors for Peracetic Acid (PAA)
Palintest
Palintest Kemio Sensors for Peracetic Acid (PAA) Sale priceFrom £140.25 Regular price£165.00
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
Save £9.79
Palintest DPD Oxystop ReagentsPalintest DPD Oxystop Reagents
Palintest
Palintest DPD Oxystop Reagents Sale price£55.51 Regular price£65.30
Lovibond Iron Low Range ReagentsLovibond Iron Low Range Reagents
Save £7.98
Lovibond COD Vials Mercury Free 0-15000mg/lLovibond COD Vials Mercury Free 0-15000mg/l
Lovibond
Lovibond COD Vials Mercury Free 0-15000mg/l Sale price£53.37 Regular price£61.35
LaMotte ColorQ 2 Refill PackLaMotte ColorQ 2 Refill Pack
Stabilised Chlorine GranulesStabilised Chlorine Granules
Save £11.26
Palintest Instachlor - PR 3000 (5g)Palintest Instachlor - PR 3000 (5g)
Palintest
Palintest Instachlor - PR 3000 (5g) Sale price£101.34 Regular price£112.60
Save £2.48
Lovibond Nitrite No.1 100 Tablet BottleLovibond Nitrite No.1 100 Tablet Bottle
Lovibond
Lovibond Nitrite No.1 100 Tablet Bottle Sale price£16.57 Regular price£19.05
Save £3.83
Lovibond Phosphate No.1 L.R.TabletsLovibond Phosphate No.1 L.R.Tablets
Lovibond
Lovibond Phosphate No.1 L.R.Tablets Sale price£25.64 Regular price£29.47
Lovibond Dechlor TabletsLovibond Dechlor Tablets
Save £7.98
Lovibond COD Vario Vials  0-15000 mg/l,16 mmLovibond COD Vario Vials  0-15000 mg/l,16 mm
Lovibond
Lovibond COD Vario Vials 0-15000 mg/l,16 mm Sale price£53.37 Regular price£61.35
Save £2.85
Palintest DPD No 1 Rapid Dissolve 250 Reagents(Boric Acid Free)Palintest DPD No 1 Rapid Dissolve 250 Reagents(Boric Acid Free)
Save £21.90
Palintest Lumiso Chlorine, Chlorine Dioxide, Ozone Check Standards
On sale
Lovibond Nitrite Low Range (LR) Test TabletsLovibond Nitrite Low Range (LR) Test Tablets