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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4195 products

Save £7.56
Palintest Comparator Disc, Nitrite, 0 - 0.4 mg/L N
Palintest
Palintest Comparator Disc, Nitrite, 0 - 0.4 mg/L N Sale price£42.84 Regular price£50.40
Save £7.17
Palintest Comparator Disc, Ammonia, 0 - 1 mg/L N
Palintest
Palintest Comparator Disc, Ammonia, 0 - 1 mg/L N Sale price£40.63 Regular price£47.80
Palintest Balanced Water Chlorine / pH KitPalintest Balanced Water Chlorine / pH Kit
Palintest
Palintest Balanced Water Chlorine / pH Kit Sale price£60.00
Save £8.13
Lovibond Manganese LR No.1 TabletsLovibond Manganese LR No.1 Tablets
Lovibond
Lovibond Manganese LR No.1 Tablets Sale price£54.41 Regular price£62.54
Save £10.65
Lovibond W600.OG.50mm Cell
Lovibond
Lovibond W600.OG.50mm Cell Sale price£71.31 Regular price£81.96
Save £158.65
Lovibond RD125 COD Reactor
Lovibond
Lovibond RD125 COD Reactor Sale price£1,061.77 Regular price£1,220.42
Save £4.27
Lovibond Nitrification Inhibitor, 50ml
Lovibond
Lovibond Nitrification Inhibitor, 50ml Sale price£28.60 Regular price£32.87
Save £9.87
Lovibond Iron Vario TPTZ F10 Powder Reagents
Lovibond
Lovibond Iron Vario TPTZ F10 Powder Reagents Sale price£66.03 Regular price£75.90
Save £322.95
Lovibond EC 2000 PT-CO
Lovibond
Lovibond EC 2000 PT-CO Sale price£2,161.26 Regular price£2,484.21
Lovibond EDTA TabletsLovibond EDTA Tablets
Lovibond
Lovibond EDTA Tablets Sale price£25.00
Lovibond DPD No 1 High Calcium Tablets (EPL)Lovibond DPD No 1 High Calcium Tablets (EPL)
Lovibond
Lovibond DPD No 1 High Calcium Tablets (EPL) Sale priceFrom £15.16
Save £8.63
Lovibond DPD 1 Buffer Solution (Blue bottle)
Lovibond
Lovibond DPD 1 Buffer Solution (Blue bottle) Sale price£57.77 Regular price£66.40
Save £3.58
Lovibond DPD Nitrite Tablets Bottle
Lovibond
Lovibond DPD Nitrite Tablets Bottle Sale price£23.96 Regular price£27.54
Save £7.05
Lovibond Combi Pack Phosphate HR/100 TabletsLovibond Combi Pack Phosphate HR/100 Tablets
Lovibond
Lovibond Combi Pack Phosphate HR/100 Tablets Sale price£47.20 Regular price£54.25
Save £3.49
Lovibond Chloride No.2 TabletsLovibond Chloride No.2 Tablets
Lovibond
Lovibond Chloride No.2 Tablets Sale price£23.38 Regular price£26.87
Save £12.72
Lovibond Checkit Comparator Kit Total AlkalinityLovibond Checkit Comparator Kit Total Alkalinity
Lovibond
Lovibond Checkit Comparator Kit Total Alkalinity Sale price£85.12 Regular price£97.84
Lovibond Checkit Comparator Bromine PHLovibond Checkit Comparator Bromine PH
Lovibond
Lovibond Checkit Comparator Bromine PH Sale price£94.94
Lovibond Checkit® Comparator Iron HRLovibond Checkit® Comparator Iron HR
Lovibond
Lovibond Checkit® Comparator Iron HR Sale price£71.20
Lovibond Biguanide (PHMB) / Hydrogen Peroxide pH POOLTESTERLovibond Biguanide (PHMB) / Hydrogen Peroxide pH POOLTESTER
Lovibond
Lovibond Biguanide (PHMB) / Hydrogen Peroxide pH POOLTESTER Sale price£30.90
Lovibond 3/53B Bromine Disc
Lovibond
Lovibond 3/53B Bromine Disc Sale price£136.26
Save £20.36
Lovibond 3/40E Chlorine Disc 0.02-0.3mg/l
Lovibond
Lovibond 3/40E Chlorine Disc 0.02-0.3mg/l Sale price£136.26 Regular price£156.62
La Motte Insta-Test 6-Way Drinking Water Test StripsLa Motte Insta-Test 6-Way Drinking Water Test Strips
Lamotte
La Motte Insta-Test 6-Way Drinking Water Test Strips Sale price£27.55
Hydrogen Peroxide LR Strips [0-100ppm] (50Pk)Hydrogen Peroxide LR Strips [0-100ppm] (50Pk)
DTK-TAW
Hydrogen Peroxide LR Strips [0-100ppm] (50Pk) Sale price£26.49
Save £4.51
Hanna Instruments-733 Ammonia High Range Handheld Colorimeter (0.0-99.9ppm) Checker®HCHanna Instruments-733 Ammonia High Range Handheld Colorimeter (0.0-99.9ppm) Checker®HC
Hanna Instruments
Hanna Instruments-733 Ammonia High Range Handheld Colorimeter (0.0-99.9ppm) Checker®HC Sale price£85.69 Regular price£90.20

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