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

Save £5.54
Palintest pH Phenol Red Pocket KitPalintest pH Phenol Red Pocket Kit
Palintest
Palintest pH Phenol Red Pocket Kit Sale price£49.86 Regular price£55.40
Save £21.60
Palintest Lumiso Ammonia Check Standards Kit
Palintest
Palintest Lumiso Ammonia Check Standards Kit Sale price£122.40 Regular price£144.00
Save £14.16
Lovibond Checkit Comparator 2 in 1 Chlorine DPD/pH Kit
Lovibond
Lovibond Checkit Comparator 2 in 1 Chlorine DPD/pH Kit Sale price£94.80 Regular price£108.96
Save £2.13
Palintest Lint Free Polishing Cloth
Palintest
Palintest Lint Free Polishing Cloth Sale price£12.07 Regular price£14.20
Save £8.72
Palintest Contour Comparator Kit Alkalinity 0 - 250 mg/L CaCO3Palintest Contour Comparator Kit Alkalinity 0 - 250 mg/L CaCO3
Palintest
Palintest Contour Comparator Kit Alkalinity 0 - 250 mg/L CaCO3 Sale price£78.48 Regular price£87.20
eXact ID Strip Micro Combined/Total Chlorine (DPD-3)eXact ID Strip Micro Combined/Total Chlorine (DPD-3)
ITS
eXact ID Strip Micro Combined/Total Chlorine (DPD-3) Sale price£9.49
eXact ID Strip Micro 570 Total Alkalinity II
ITS
eXact ID Strip Micro 570 Total Alkalinity II Sale price£11.54
Save £3.75
eXact ID Strip Micro Phosphate
ITS
eXact ID Strip Micro Phosphate Sale price£14.24 Regular price£17.99
LaMotte Insta Test Total Chlorine, pH, Total Hardness & Iron Test Strip Kit
LaMotte
LaMotte Insta Test Total Chlorine, pH, Total Hardness & Iron Test Strip Kit Sale price£32.44
Blue Horizons JellyClear CubesBlue Horizons JellyClear Cubes
Blue Horizons
Blue Horizons JellyClear Cubes Sale priceFrom £5.82
Blue Horizons Calcium Hardness Raiser 5kg - USE CHPLUS5OL / CHPLUS1OL as alternativeBlue Horizons Calcium Hardness Raiser 5kg - USE CHPLUS5OL / CHPLUS1OL as alternative
Blue Horizons
Blue Horizons Calcium Hardness Raiser 5kg - USE CHPLUS5OL / CHPLUS1OL as alternative Sale price£18.12
Blue Horizons Multifunctional 20g Chlorine Tablets 1kg - Use MFTAB201OL as alternativeBlue Horizons Multifunctional 20g Chlorine Tablets 1kg - Use MFTAB201OL as alternative
Blue Horizons
Blue Horizons Multifunctional 20g Chlorine Tablets 1kg - Use MFTAB201OL as alternative Sale price£16.15
Aquasparkle Non Chlorine Shock 1kg
Aquasparkle
Aquasparkle Non Chlorine Shock 1kg Sale price£18.90
Blue Horizons Chlorine Granules 1kg use CLGRAN1OL as alternativeBlue Horizons Chlorine Granules 1kg use CLGRAN1OL as alternative
Blue Horizons
Blue Horizons Chlorine Granules 1kg use CLGRAN1OL as alternative Sale price£8.66
Save £15.30
Palintest Contour Comparator Kit, Phenol Red, pH 6.8 - 8.4Palintest Contour Comparator Kit, Phenol Red, pH 6.8 - 8.4
Palintest
Palintest Contour Comparator Kit, Phenol Red, pH 6.8 - 8.4 Sale price£86.70 Regular price£102.00
Aquablanc O2 Tablets - 1kgAquablanc O2 Tablets - 1kg
AQUABLANC
Aquablanc O2 Tablets - 1kg Sale price£24.05
Test All Water
Test All Water Swimming Pool Test 5 In 1 Strips Sale price£3.06
Swimming Pool Test 3 In 1
Test All Water
Swimming Pool Test 3 In 1 Sale price£8.80
Test All Water
Swimming Pool Test 5 In 1 Sale price£3.06
Test All Water
Swimming Pool Test 5 In 1 Sale price£7.55
Test All Water
Swimming Pool Test 3 In 1Title Sale price£7.55
Test All Water
Replacement electrode module for DO meter Trace2O Sale price£249.52
Replacement electrode module for pH meter Trace2O
Test All Water
Replacement electrode module for pH meter Trace2O Sale price£24.95
Eutech 442 Conductivity Solution 480ml
Eutech
Eutech 442 Conductivity Solution 480ml Sale price£26.87

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