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:

4195 products

Tryptone Soya Agar with TTC* and Rose Bengal Agar
TEST ALL WATER
Tryptone Soya Agar with TTC* and Rose Bengal Agar Sale price£11.56
Lovibond Tannin No.1 Tablets
Lovibond
Lovibond Tannin No.1 Tablets Sale price£16.11
Save £3.80
Lovibond Sulphate Turbidity Tablets
Lovibond
Lovibond Sulphate Turbidity Tablets Sale price£25.44 Regular price£29.24
Pro-Swim Spa Cartridge Cleaner
Pro-Swim
Pro-Swim Spa Cartridge Cleaner Sale price£8.09
QA3 - QAC Titrant
DTK-TAW
QA3 - QAC Titrant Sale price£12.78
pH7 Buffer Solution (Coloured)pH7 Buffer Solution (Coloured)
DTK-TAW
pH7 Buffer Solution (Coloured) Sale price£8.50
Save £11.49
Lovibond pH-electrode, pH 0 – 14, plastic/gel type, BNC-plugLovibond pH-electrode, pH 0 – 14, plastic/gel type, BNC-plug
Lovibond
Lovibond pH-electrode, pH 0 – 14, plastic/gel type, BNC-plug Sale price£76.92 Regular price£88.41
Peracetic Acid 0-50 Test StripsPeracetic Acid 0-50 Test Strips
Johnson Analytica
Peracetic Acid 0-50 Test Strips Sale price£16.51
Save £4.62
Palintest Conductivity Solution, Mid Range, 1412µS/cm, 500mlPalintest Conductivity Solution, Mid Range, 1412µS/cm, 500ml
Palintest
Palintest Conductivity Solution, Mid Range, 1412µS/cm, 500ml Sale price£26.18 Regular price£30.80
Palintest Poly vial 10ml/cap
Palintest
Palintest Poly vial 10ml/cap Sale price£3.50
Save £13.42
Palintest Phosphate TubetestsPalintest Phosphate Tubetests
Palintest
Palintest Phosphate Tubetests Sale price£76.08 Regular price£89.50
Palintest Dissolved Oxygen Photometer Liquid Vials (0 - 0.8 mg/L O2 (Alternative code 380450)
Palintest
Palintest Dissolved Oxygen Photometer Liquid Vials (0 - 0.8 mg/L O2 (Alternative code 380450) Sale price£170.00
Save £7.83
Palintest COD Range 15000M/C TUBETESTPalintest COD Range 15000M/C TUBETEST
Palintest
Palintest COD Range 15000M/C TUBETEST Sale price£70.47 Regular price£78.30
Lovibond Tannin No.2 TabletsLovibond Tannin No.2 Tablets
Lovibond
Lovibond Tannin No.2 Tablets Sale priceFrom £14.56
Lovibond Test Tube Rack For PhotometersLovibond Test Tube Rack For Photometers
Lovibond
Lovibond Test Tube Rack For Photometers Sale price£20.40
Save £10.30
Lovibond Reference Standard Kit (Chlorine) 0.2 & 1 mg/l for MD 100, MD 110Lovibond Reference Standard Kit (Chlorine) 0.2 & 1 mg/l for MD 100, MD 110
Lovibond
Lovibond Reference Standard Kit (Chlorine) 0.2 & 1 mg/l for MD 100, MD 110 Sale price£68.91 Regular price£79.21
Lovibond Ozone in the Presence of Chlorine Checkit Comparator KitLovibond Ozone in the Presence of Chlorine Checkit Comparator Kit
Lovibond
Lovibond Ozone in the Presence of Chlorine Checkit Comparator Kit Sale price£75.02
Save £85.43
Lovibond MD200 2 in 1 Chlorine, pH (Tablets)Lovibond MD200 2 in 1 Chlorine, pH (Tablets)
Lovibond
Lovibond MD200 2 in 1 Chlorine, pH (Tablets) Sale price£571.72 Regular price£657.15
Save £61.82
Lovibond MD100T Photometer Chlorine OTZ (Discontinued)Lovibond MD100T Photometer Chlorine OTZ (Discontinued)
Lovibond
Lovibond MD100T Photometer Chlorine OTZ (Discontinued) Sale price£550.77 Regular price£612.59
Save £177.03
Lovibond MD600 MaxiDirect, CompleteLovibond MD600 MaxiDirect, Complete
Lovibond
Lovibond MD600 MaxiDirect, Complete Sale price£1,184.76 Regular price£1,361.79
Save £215.94
Lovibond MD 640 Photometer and FluorometerLovibond MD 640 Photometer and Fluorometer
Lovibond
Lovibond MD 640 Photometer and Fluorometer Sale price£1,445.14 Regular price£1,661.08
Save £28.75
Lovibond MaxiDirect Veri-Set Standards (MD600 / MD610)Lovibond MaxiDirect Veri-Set Standards (MD600 / MD610)
Lovibond
Lovibond MaxiDirect Veri-Set Standards (MD600 / MD610) Sale price£192.40 Regular price£221.15
Lovibond Iron LR Checkit Disc 0-1 mg/l Fe
Lovibond
Lovibond Iron LR Checkit Disc 0-1 mg/l Fe Sale price£25.16
Lovibond Hydrogen Peroxide 0.05 – 100mg/l H202 Test Strips
Lovibond
Lovibond Hydrogen Peroxide 0.05 – 100mg/l H202 Test Strips Sale price£28.15

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