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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6008 products

Check₂O Pool & Spa 5 in 1 Test StripsCheck₂O Pool & Spa 5 in 1 Test Strips
Johnson Analytica
Check₂O Pool & Spa 5 in 1 Test Strips Sale priceFrom £2.32
Save £3.75
Hanna Instruments HI-782 Nitrate High Range Checker for MarineHanna Instruments HI-782 Nitrate High Range Checker for Marine
Hanna Instruments
Hanna Instruments HI-782 Nitrate High Range Checker for Marine Sale price£71.35 Regular price£75.10
Save £83.22
Lovibond MD50 Suspended Solids PhotometerLovibond MD50 Suspended Solids Photometer
Lovibond
Lovibond MD50 Suspended Solids Photometer Sale price£556.94 Regular price£640.16
Save £377.55
Palintest Kemio Heavy Metals Soft Case Kit (Lead, Copper, Arsenic and Cadmium)Palintest Kemio Heavy Metals Soft Case Kit (Lead, Copper, Arsenic and Cadmium)
Palintest
Palintest Kemio Heavy Metals Soft Case Kit (Lead, Copper, Arsenic and Cadmium) Sale price£2,139.45 Regular price£2,517.00
Save £1.88
Hanna Instruments HI-715-25 Reagents for HI-715 Ammonia Medium Range Checker HC
Hanna Instruments
Hanna Instruments HI-715-25 Reagents for HI-715 Ammonia Medium Range Checker HC Sale price£35.72 Regular price£37.60
IDEXX 120ml Vessels without Sodium Thiosulphate
IDEXX
IDEXX 120ml Vessels without Sodium Thiosulphate Sale priceFrom £49.00
Save £291.45
Palintest Micro 800 Multiparameter
Palintest
Palintest Micro 800 Multiparameter Sale price£1,651.55 Regular price£1,943.00
eXact DPD-1 Micro Free Chlorine
ITS
eXact DPD-1 Micro Free Chlorine Sale price£12.44
Photo coming soon
TEST ALL WATER
Elite PCTS Replacement Sensors Sale price£46.00
SD300 PH Meter With pH-electrodeSD300 PH Meter With pH-electrode
TEST ALL WATER
SD300 PH Meter With pH-electrode Sale price£350.00
Save £4.73
Palintest Phosphate SR (250F), PO₄
Palintest
Palintest Phosphate SR (250F), PO₄ Sale price£42.57 Regular price£47.30
Safe Swim Meter Reagent DPD-4 Total Chlorine
ITS
Safe Swim Meter Reagent DPD-4 Total Chlorine Sale price£13.34
PoolLab Nitrite LR Photometer Powder Pillows
WATER-I.D.
PoolLab Nitrite LR Photometer Powder Pillows Sale price£17.25
PoolLab Ammonia No.1 Powder Pillows
WATER-I.D.
PoolLab Ammonia No.1 Powder Pillows Sale priceFrom £16.95
Plastic syringe, 5ml
Lovibond
Plastic syringe, 5ml Sale price£0.53
PWTAG Swimming Pool Water Book
PWTAG Swimming Pool Water
PWTAG Swimming Pool Water Book Sale price£38.00
Lovibond Titrant A
Lovibond
Lovibond Titrant A Sale price£12.95
How to take a water sample Photo coming soon
TEST ALL WATER
Cryptosporidium Testing in Water Sample Sale price£280.00
Pro-Swim Chlorine/Bromine Neutraliser 2kgPro-Swim Chlorine/Bromine Neutraliser 2kg
Pro-Swim
Pro-Swim Chlorine/Bromine Neutraliser 2kg Sale price£20.09
Save £3.11
Lovibond Alkalinity P 250 Tablets
Lovibond
Lovibond Alkalinity P 250 Tablets Sale price£20.81 Regular price£23.92
Save £7.03
Lovibond Storage Solution for pH/CRP ElectrodeLovibond Storage Solution for pH/CRP Electrode
Lovibond
Lovibond Storage Solution for pH/CRP Electrode Sale priceFrom £7.50 Regular price£14.53
IDEXX Sample vessels With Sodium Thiosulfate
IDEXX
IDEXX Sample vessels With Sodium Thiosulfate Sale price£53.20
Save £3.55
Palintest Chlorine (0.1-3mg/l) /pH / Alkalinity PooltesterPalintest Chlorine (0.1-3mg/l) /pH / Alkalinity Pooltester
Palintest
Palintest Chlorine (0.1-3mg/l) /pH / Alkalinity Pooltester Sale price£20.15 Regular price£23.70
Biospot® Detergent Sanitiser TabletsBiospot® Detergent Sanitiser Tablets
Biospot
Biospot® Detergent Sanitiser Tablets Sale priceFrom £9.11

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