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:

4192 products

Lovibond Refill Pack, Chlorine/pHLovibond Refill Pack, Chlorine/pH
Lovibond
Lovibond Refill Pack, Chlorine/pH Sale price£8.26
Save £100.67
Ranger 45 Slide Incubator (Mains & 12v)
DTK-TAW
Ranger 45 Slide Incubator (Mains & 12v) Sale price£673.68 Regular price£774.35
Merck
Polyethylene glycol 6000 Sale price£37.06
Pool Check 5 in 1
ITS
Pool Check 5 in 1 Sale price£9.74
Hach
ph Disc Sale price£69.11
pH Test Strips 7-14 (100Pk)
DTK-TAW
pH Test Strips 7-14 (100Pk) Sale price£26.49
Phenol Red SolutionPhenol Red Solution
DTK-TAW
Phenol Red Solution Sale price£14.54
Save £3.51
Lovibond Phenol Red Solution
Lovibond
Lovibond Phenol Red Solution Sale price£23.51 Regular price£27.02
Save £5.08
Lovibond Phenol Tablets No.2 100 TabletsLovibond Phenol Tablets No.2 100 Tablets
Lovibond
Lovibond Phenol Tablets No.2 100 Tablets Sale price£34.03 Regular price£39.11
Save £7.29
Lovibond Phenol No.1 100 TabletsLovibond Phenol No.1 100 Tablets
Lovibond
Lovibond Phenol No.1 100 Tablets Sale price£67.66 Regular price£74.95
Save £1.12
Palintest/Wagtech Cover Slip Forceps
Palintest
Palintest/Wagtech Cover Slip Forceps Sale price£6.38 Regular price£7.50
Lovibond
Lovibond Persulfat Reagent for CR Sale price£79.98 Regular price£91.93
Palintest
Palintest Tube Test Adaptor for Compact Ammonia Meter Sale price£25.00
Palintest Pooltest Pro CD
Palintest
Palintest Pooltest Pro CD Sale price£0.00
Save £4.27
Palintest Contour Comparator Disc Nitrate
Palintest
Palintest Contour Comparator Disc Nitrate Sale price£38.43 Regular price£42.70
Palintest Dissolved Oxygen Liquid Vial (0-20mg/l)
Palintest
Palintest Dissolved Oxygen Liquid Vial (0-20mg/l) Sale price£155.00
vendor-unknown
Palintest Chlorine Colour Disc 0 - 1.0mg/l Sale price£46.01
vendor-unknown
Palintest Comparator and 2 Test Tubes Sale price£48.65
Palintest Chemical Oxygen Demand (COD) Tubetests - Containing Mercury for high Chloride 10 - 1000 mg/L 02
Palintest
Palintest Chemical Oxygen Demand (COD) Tubetests - Containing Mercury for high Chloride 10 - 1000 mg/L 02 Sale price£83.90
Fisher Scientific
Oxide dipslides TTC (Red spots) Sale price£34.89
DTK-TAW
DTK Ozone Test Strips [0-0.5ppm] (50Pk) Sale price£40.63
Save £12.96
Lovibond NSB Hazen Scale Disc, 70-250
Lovibond
Lovibond NSB Hazen Scale Disc, 70-250 Sale price£246.26 Regular price£259.22
Save £5.14
Lovibond Organo Phosphonate No.1 Tablets
Lovibond
Lovibond Organo Phosphonate No.1 Tablets Sale price£34.37 Regular price£39.51
Lovibond
Lovibond Nitrate Test Powder R282 15g Sale price£15.71 Regular price£18.06

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