Best Selling Products

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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4003 products

On sale
Lovibond Spare Cells for Checkit
Save £2.08
Lovibond Total Hardness TabletsLovibond Total Hardness Tablets
Lovibond
Lovibond Total Hardness Tablets Sale price£21.53 Regular price£23.61
Save £122.99
Lovibond Pool Control 12 in 1 Photometer PM600Lovibond Pool Control 12 in 1 Photometer PM600
Lovibond
Lovibond Pool Control 12 in 1 Photometer PM600 Sale price£642.36 Regular price£765.35
Save £0.21
Lovibond Light Shielding Ring for round vials 24mm, set of 12Lovibond Light Shielding Ring for round vials 24mm, set of 12
Lovibond Hydrogen Peroxide Reagent SolutionLovibond Hydrogen Peroxide Reagent Solution
Save £3.25
Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10)Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10)
Lovibond DPD No 1 Liquid Buffer Solution
Lovibond Chlorine Standard set MD100, MD110, MD200Lovibond Chlorine Standard set MD100, MD110, MD200
Lovibond Checkit 5 in 1 Comparator KitLovibond Checkit 5 in 1 Comparator Kit
Eutech pH 7.00  Buffer Solution - 480mlEutech pH 7.00  Buffer Solution - 480ml
LaMotte ColorQ 2 Refill PackLaMotte ColorQ 2 Refill Pack
Safe Swim Meter Reagent Total Alkalinity
Save £2.08
Palintest Chlorine/pH PooltesterPalintest Chlorine/pH Pooltester
Palintest
Palintest Chlorine/pH Pooltester Sale price£18.72 Regular price£20.80
Oasis 1000 Water Purification TabletsOasis 1000 Water Purification Tablets
Biospot Effervescent Chlorine TabletsBiospot Effervescent Chlorine Tablets
Hyzyme Natural Septic Tank Treatment 600gHyzyme Natural Septic Tank Treatment 600g
Save £10.87
Palintest Lumiso Expert Check Standards
Palintest
Palintest Lumiso Expert Check Standards Sale price£97.83 Regular price£108.70
LaMotte Insta-Test Magnesium Test Strips
TH2 - Total Hardness BufferTH2 - Total Hardness Buffer
Test All Water Spa & Hot Tub Bromine Disinfectant TabletsTest All Water Spa & Hot Tub Bromine Disinfectant Tablets
On sale
Palintest Nitrite (Nitriphot) Photometer TabletsPalintest Nitrite (Nitriphot) Photometer Tablets
Palintest
Palintest Nitrite (Nitriphot) Photometer Tablets Sale priceFrom £46.17 Regular price£51.30
Save £13.08
Palintest Copper (Free), Photometer Reagents, 0-5 mg/L CuPalintest Copper (Free), Photometer Reagents, 0-5 mg/L Cu
Save £11.21
Palintest Contour Comparator Kit Chlorine 0 -2 mg/l / pHPalintest Contour Comparator Kit Chlorine 0 -2 mg/l / pH
Lovibond pH Checkit Disc 6.5 - 8.4 pH