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

PoolLab 2.0 Replacement CuvettePoolLab 2.0 Replacement Cuvette
Pro-Swim pH IncreaserPro-Swim pH Increaser
Test All Water pH Minus/Dry AcidTest All Water pH Minus/Dry Acid
Save £7.75
Palintest Contour Comparator Kit Chlorine (0-5mg/l Cl2)Palintest Contour Comparator Kit Chlorine (0-5mg/l Cl2)
Lovibond DPD No 3 High Range TabletsLovibond DPD No 3 High Range Tablets
Lovibond Dechlor TabletsLovibond Dechlor Tablets
Lovibond AF431 Sulphate KitLovibond AF431 Sulphate Kit
Save £13.50
Palintest Lumiso Chlorine, Chlorine Dioxide, Ozone Check Standards
PoolLab 1.0 Replacement Cuvette
Save £11.26
Palintest Instachlor - PR 3000 (5g)Palintest Instachlor - PR 3000 (5g)
Palintest
Palintest Instachlor - PR 3000 (5g) Sale price£101.34 Regular price£112.60
Lovibond Potassium Iodide Tablets BottleLovibond Potassium Iodide Tablets Bottle
Lovibond DPD 1 Liquid Reagent Solution
PoolLab Total Hardness Liquid ReagentsPoolLab Total Hardness Liquid Reagents
Save £1.45
Palintest Cyanuric Acid - 50 TestsPalintest Cyanuric Acid - 50 Tests
Palintest
Palintest Cyanuric Acid - 50 Tests Sale price£13.05 Regular price£14.50
Save £1.95
Palintest Ammonia Conditioning PowderPalintest Ammonia Conditioning Powder
Palintest
Palintest Ammonia Conditioning Powder Sale price£17.55 Regular price£19.50
Lovibond Comparator 2000+ Phenol Red Disc
Lovibond 5 in1 Multi-PooltesterLovibond 5 in1 Multi-Pooltester
J-QUANT Peracetic Acid 0-500 Test StripsJ-QUANT Peracetic Acid 0-500 Test Strips
Water-I.D Alkatest Rapid 100 TabletsWater-I.D Alkatest Rapid 100 Tablets
Save £2.37
Lovibond 3 Chamber Tester Chlorine / pH / Alk / cya (4 in 1 Test Kit)Lovibond 3 Chamber Tester Chlorine / pH / Alk / cya (4 in 1 Test Kit)
On sale
Lovibond Nitrite Low Range (LR) Test TabletsLovibond Nitrite Low Range (LR) Test Tablets
Save £11.87
Palintest Pistol Grip Hand Vacuum PumpPalintest Pistol Grip Hand Vacuum Pump
Palintest
Palintest Pistol Grip Hand Vacuum Pump Sale price£106.83 Regular price£118.70
Water-ID DPD No.1 Rapid TabletsWater-ID DPD No.1 Rapid Tablets
Save £12.65
Palintest DPD No 3 LiquidPalintest DPD No 3 Liquid
Palintest
Palintest DPD No 3 Liquid Sale price£113.85 Regular price£126.50