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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6025 products

Save £103.97
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£695.82 Regular price£799.79
Save £3.08
Lovibond Phosphate No.2 L.R.TabletsLovibond Phosphate No.2 L.R.Tablets
Lovibond
Lovibond Phosphate No.2 L.R.Tablets Sale price£20.58 Regular price£23.66
Lovibond PHMB Test TabletsLovibond PHMB Test Tablets
Lovibond
Lovibond PHMB Test Tablets Sale price£21.91
On sale
Lovibond Iron HR Comp Tablets 0-10mg/lLovibond Iron HR Comp Tablets 0-10mg/l
Lovibond
Lovibond Iron HR Comp Tablets 0-10mg/l Sale priceFrom £24.81 Regular price£28.52
Save £15.90
Lovibond Glycol RefractometerLovibond Glycol Refractometer
Lovibond
Lovibond Glycol Refractometer Sale price£106.37 Regular price£122.27
Save £4.73
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
Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10) Sale price£31.63 Regular price£36.36
Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red)Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red)
Lovibond
Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red) Sale price£63.41
Save £9.47
Lovibond CHECKIT COMPARATOR Bromine KitLovibond CHECKIT COMPARATOR Bromine Kit
Lovibond
Lovibond CHECKIT COMPARATOR Bromine Kit Sale price£63.41 Regular price£72.88
Lovibond Checkit ComparatorLovibond Checkit Comparator
Lovibond
Lovibond Checkit Comparator Sale price£24.79
Lamotte ColorQ Replacement Test TubeLamotte ColorQ Replacement Test Tube
LaMotte
Lamotte ColorQ Replacement Test Tube Sale priceFrom £3.20
DTK H/TH4/CH3 - Hardness HR Titrant
DTK-TAW
DTK H/TH4/CH3 - Hardness HR Titrant Sale price£10.72
Kuntze GDX 350µm Bowl &Filter 1/4"& Female c/w 1/4" Hex Nipple
Kuntze Instruments
Kuntze GDX 350µm Bowl &Filter 1/4"& Female c/w 1/4" Hex Nipple Sale price£61.68
PoolLab Phosphate No.2 LR Photometer TabletsPoolLab Phosphate No.2 LR Photometer Tablets
WATER-I.D.
PoolLab Phosphate No.2 LR Photometer Tablets Sale priceFrom £5.95
Save £2.16
Hanna Instruments-733-25 Reagents For HR Ammonia Checker
Hanna Instruments
Hanna Instruments-733-25 Reagents For HR Ammonia Checker Sale price£41.14 Regular price£43.30
Hyzyme Natural Septic Tank Treatment 600gHyzyme Natural Septic Tank Treatment 600g
Hyzyme
Hyzyme Natural Septic Tank Treatment 600g Sale priceFrom £17.75
LaMotte Insta-Test - Nitrate & Nitrite Test StripsLaMotte Insta-Test - Nitrate & Nitrite Test Strips
LaMotte
LaMotte Insta-Test - Nitrate & Nitrite Test Strips Sale price£20.56
Sold out
Blue Horizons pH Minus- Use PHMIN7OL / PHMIN15OL if out of stockBlue Horizons pH Minus- Use PHMIN7OL / PHMIN15OL if out of stock
Blue Horizons
Blue Horizons pH Minus- Use PHMIN7OL / PHMIN15OL if out of stock Sale priceFrom £8.40
Lovibond Alkali Hi/Lo Test KitLovibond Alkali Hi/Lo Test Kit
Lovibond
Lovibond Alkali Hi/Lo Test Kit Sale price£70.04
Pro-Swim Spa No-Foam
Pro-Swim
Pro-Swim Spa No-Foam Sale price£9.59
Save £1,478.70
Palintest Potalab +
Palintest
Palintest Potalab + Sale price£8,379.30 Regular price£9,858.00
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
Save £15.26
Lovibond Sample Cells / Turbidity Vials with Cap for TB 210 IR & TB 300 IR (pack of 12)Lovibond Sample Cells / Turbidity Vials with Cap for TB 210 IR & TB 300 IR (pack of 12)
Lovibond
Lovibond Sample Cells / Turbidity Vials with Cap for TB 210 IR & TB 300 IR (pack of 12) Sale price£102.15 Regular price£117.41
Lovibond MD 200 Pool Control 6 in 1Lovibond MD 200 Pool Control 6 in 1
Lovibond
Lovibond MD 200 Pool Control 6 in 1 Sale price£683.27
Lovibond AF418 Chloride / Salt Test KitLovibond AF418 Chloride / Salt Test Kit
Lovibond
Lovibond AF418 Chloride / Salt Test Kit Sale price£64.81

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