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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6009 products

PoolLab Dpd No 1 & pH BundlePoolLab Dpd No 1 & pH Bundle
WATER-I.D.
PoolLab Dpd No 1 & pH Bundle Sale priceFrom £9.00
Sold out
Pro Swim Total Alkalinity IncreaserPro Swim Total Alkalinity Increaser
Pro-Swim
Pro Swim Total Alkalinity Increaser Sale priceFrom £5.40
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
IDEXX Pseudalert for 100ml Sample
IDEXX
IDEXX Pseudalert for 100ml Sample Sale priceFrom £237.00
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
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
Save £115.35
Palintest Lumiso AmmoniaPalintest Lumiso Ammonia
Palintest
Palintest Lumiso Ammonia Sale price£653.65 Regular price£769.00
Hot Tub & Spa Total Alkalinity Plus (Sodium Bicarbonate)Hot Tub & Spa Total Alkalinity Plus (Sodium Bicarbonate)
TEST ALL WATER
Hot Tub & Spa Total Alkalinity Plus (Sodium Bicarbonate) Sale priceFrom £6.14
Spa pH PlusSpa pH Plus
TEST ALL WATER
Spa pH Plus Sale price£5.64
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 £137.12
Lovibond Turbidity TB211-IR MeterLovibond Turbidity TB211-IR Meter
Lovibond
Lovibond Turbidity TB211-IR Meter Sale price£917.63 Regular price£1,054.75
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
Eutech Expert CTS Pocket TesterEutech Expert CTS Pocket Tester
Eutech
Eutech Expert CTS Pocket Tester Sale price£75.32
Save £10.03
Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l)Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l)
Lovibond
Lovibond Chlorine Standard set MD100 , MD200 (1mg/l & 4mg/l) Sale price£67.11 Regular price£77.14
Save £160.00
Palintest Lumiso Pooltest 9Palintest Lumiso Pooltest 9
Palintest
Palintest Lumiso Pooltest 9 Sale price£650.00 Regular price£810.00
Lovibond Refill Pack Scuba3s - Phosphate
Lovibond
Lovibond Refill Pack Scuba3s - Phosphate Sale price£11.34
PoolLab Acidifying PT Photometer ReagentsPoolLab Acidifying PT Photometer Reagents
WATER-I.D.
PoolLab Acidifying PT Photometer Reagents Sale priceFrom £7.58
PoolLab Glycine Photometer TabletsPoolLab Glycine Photometer Tablets
WATER-I.D.
PoolLab Glycine Photometer Tablets Sale priceFrom £7.58

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