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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4195 products

Peracetic Acid 0 - 160 Test StripsPeracetic Acid 0 - 160 Test Strips
Johnson Analytica
Peracetic Acid 0 - 160 Test Strips Sale price£6.58
Save £4.19
Lovibond Nitrite No.2 250 Tablets
Lovibond
Lovibond Nitrite No.2 250 Tablets Sale price£28.05 Regular price£32.24
Save £4.13
Lovibond Sulphide No.2 Tablets BottleLovibond Sulphide No.2 Tablets Bottle
Lovibond
Lovibond Sulphide No.2 Tablets Bottle Sale price£27.62 Regular price£31.75
Lovibond Verification set MD100 / MD 110 / MD 200Lovibond Verification set MD100 / MD 110 / MD 200
Lovibond
Lovibond Verification set MD100 / MD 110 / MD 200 Sale price£193.84
Lovibond Comparator 2000+ chlorine Disc 0.2 - 4.0 mg/lLovibond Comparator 2000+ chlorine Disc 0.2 - 4.0 mg/l
Lovibond
Lovibond Comparator 2000+ chlorine Disc 0.2 - 4.0 mg/l Sale price£136.26
Save £1.98
Lovibond Blue Cap For Scuba II
Lovibond
Lovibond Blue Cap For Scuba II Sale price£13.26 Regular price£15.24
Save £5.19
Lovibond AF423 Hardness Yes/No TestLovibond AF423 Hardness Yes/No Test
Lovibond
Lovibond AF423 Hardness Yes/No Test Sale price£51.97 Regular price£57.16
Test All Water Hardness Stop/Go SolutionTest All Water Hardness Stop/Go Solution
DTK-TAW
Test All Water Hardness Stop/Go Solution Sale price£10.93
PoolLab/ Dpd No 1 , pH , Dpd No 3 bundlePoolLab/ Dpd No 1 , pH , Dpd No 3 bundle
TEST ALL WATER
PoolLab/ Dpd No 1 , pH , Dpd No 3 bundle Sale priceFrom £14.00
PoolLab Glycine Photometer TabletsPoolLab Glycine Photometer Tablets
WATER-I.D.
PoolLab Glycine Photometer Tablets Sale priceFrom £7.58
PoolLab Mixed-Refill Pack
WATER-I.D.
PoolLab Mixed-Refill Pack Sale price£7.50
PoolLab 2.0 Reference-kit for chlorine, pH, CYA and TAPoolLab 2.0 Reference-kit for chlorine, pH, CYA and TA
WATER-I.D.
PoolLab 2.0 Reference-kit for chlorine, pH, CYA and TA Sale price£87.82
Biospot Effervescent Chlorine TabletsBiospot Effervescent Chlorine Tablets
Biospot
Biospot Effervescent Chlorine Tablets Sale priceFrom £10.08
Save £0.36
Palintest Sample Container, 10 /20 ml plastic
Palintest
Palintest Sample Container, 10 /20 ml plastic Sale price£3.24 Regular price£3.60
Save £3.33
Palintest DPD No.3 Rapid Dissolve 250 TabletsPalintest DPD No.3 Rapid Dissolve 250 Tablets
Palintest
Palintest DPD No.3 Rapid Dissolve 250 Tablets Sale price£18.87 Regular price£22.20
Save £13.62
Palintest Total Nitrogen 30N TubetestsPalintest Total Nitrogen 30N Tubetests
Palintest
Palintest Total Nitrogen 30N Tubetests Sale price£77.18 Regular price£90.80
On sale
Lovibond Hydrogen Peroxide H.R. Tablets
Lovibond
Lovibond Hydrogen Peroxide H.R. Tablets Sale priceFrom £21.91 Regular price£25.18
Save £3.75
Hanna Instruments HI-713 Phosphate Low Range Handheld Colorimeter - Checker HCHanna Instruments HI-713 Phosphate Low Range Handheld Colorimeter - Checker HC
Hanna Instruments
Hanna Instruments HI-713 Phosphate Low Range Handheld Colorimeter - Checker HC Sale price£71.35 Regular price£75.10
Sold out
Blue Horizons 200g Multifunctional Chlorine Tablets (Use MFTAB2005OL / MFTAB2002OL as alternative)Blue Horizons 200g Multifunctional Chlorine Tablets (Use MFTAB2005OL / MFTAB2002OL as alternative)
Blue Horizons
Blue Horizons 200g Multifunctional Chlorine Tablets (Use MFTAB2005OL / MFTAB2002OL as alternative) Sale priceFrom £10.69
Save £40.20
Palintest pH Temperature Pocket SensorPalintest pH Temperature Pocket Sensor
Palintest
Palintest pH Temperature Pocket Sensor Sale price£227.80 Regular price£268.00
Save £14.52
Palintest Contour Comparator Kit Ammonia Range 0-1mg/l NPalintest Contour Comparator Kit Ammonia Range 0-1mg/l N
Palintest
Palintest Contour Comparator Kit Ammonia Range 0-1mg/l N Sale price£82.28 Regular price£96.80
Save £2.65
Palintest Aluminium Petri Dishes, 20Palintest Aluminium Petri Dishes, 20
Palintest
Palintest Aluminium Petri Dishes, 20 Sale price£15.05 Regular price£17.70
Save £36.45
Palintest Acidifying SE 100BPalintest Acidifying SE 100B
Palintest
Palintest Acidifying SE 100B Sale price£206.55 Regular price£243.00
Save £7.32
Lovibond W600.B.5.25" Cell
Lovibond
Lovibond W600.B.5.25" Cell Sale price£139.03 Regular price£146.35

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