Swimming pool and hot tub maintenance

500+ products

Effervescent disinfectant tablets for the home, tablets for cleaning swimming pools, cleaners for the kitchen and toilets

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Hayward Automatic Chlorinator Tank, Premium Chemist, Chlorinator Fluid Exchanger, Black ABS Plastic CL200 MUMU (1/4)

Hayward Automatic Chlorinator Tank, Premium Chemist, Chlorinator Fluid Exchanger, Black ABS Plastic CL200 MUMU (2/4)

Hayward Automatic Chlorinator Tank, Premium Chemist, Chlorinator Fluid Exchanger, Black ABS Plastic CL200 MUMU

~~£31.99~~

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Chlorine Diffuser, Floating Dispenser for Chemical Chlorine, Adjustable Chlorine Doser, Chlorine Pool Doser for Swimming Pools, Water Park, Spa (1/5)

Chlorine Diffuser, Floating Dispenser for Chemical Chlorine, Adjustable Chlorine Doser, Chlorine Pool Doser for Swimming Pools, Water Park, Spa

5" Floating Chlorine Dispenser Chlorine Tablet Dispenser Adjustable Chemical Float for Indoor and Outdoor Swimming Pool (1/5)

5" Floating Chlorine Dispenser Chlorine Tablet Dispenser Adjustable Chemical Float for Indoor and Outdoor Swimming Pool (2/5)

5" Floating Chlorine Dispenser Chlorine Tablet Dispenser Adjustable Chemical Float for Indoor and Outdoor Swimming Pool (3/5)

5" Floating Chlorine Dispenser Chlorine Tablet Dispenser Adjustable Chemical Float for Indoor and Outdoor Swimming Pool (4/5)

5" Floating Chlorine Dispenser Chlorine Tablet Dispenser Adjustable Chemical Float for Indoor and Outdoor Swimming Pool

TDS Water Quality Tester, Drinking Water Tester, Water Quality Tester (0-9990 ppm), Portable Drinking Water Tester, 2 Pack, Dark Blue. (1/4)

TDS Water Quality Tester, Drinking Water Tester, Water Quality Tester (0-9990 ppm), Portable Drinking Water Tester, 2 Pack, Dark Blue. (2/4)

TDS Water Quality Tester, Drinking Water Tester, Water Quality Tester (0-9990 ppm), Portable Drinking Water Tester, 2 Pack, Dark Blue.

~~£39.70~~

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Lntyq Tester digital of quality of the water - PH and chlorine CL2 - Analyse digital of the quality of the water - For pool, spa, jacuzzi, etc (1/5)

Lntyq Tester digital of quality of the water - PH and chlorine CL2 - Analyse digital of the quality of the water - For pool, spa, jacuzzi, etc (2/5)

Lntyq Tester digital of quality of the water - PH and chlorine CL2 - Analyse digital of the quality of the water - For pool, spa, jacuzzi, etc (3/5)

Lntyq Tester digital of quality of the water - PH and chlorine CL2 - Analyse digital of the quality of the water - For pool, spa, jacuzzi, etc (4/5)

Lntyq Tester digital of quality of the water - PH and chlorine CL2 - Analyse digital of the quality of the water - For pool, spa, jacuzzi, etc

~~£51.05~~

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Portable pH tester – Chlorine meter – Pool and spa water quality monitor – Fast and accurate reading – Lightweight and compact (1/5)

Portable pH tester – Chlorine meter – Pool and spa water quality monitor – Fast and accurate reading – Lightweight and compact (2/5)

Portable pH tester – Chlorine meter – Pool and spa water quality monitor – Fast and accurate reading – Lightweight and compact (3/5)

Portable pH tester – Chlorine meter – Pool and spa water quality monitor – Fast and accurate reading – Lightweight and compact

~~£41.57~~

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PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (1/4)

PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (2/4)

PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium

~~£48.32~~

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in 1 Electronic PH Meter with TDS EC Salinity Temperature, High Accuracy IP67 Waterproof Multi-parameter pH Tester, Pool Water Salinity pH Tester with Automatic Temp Compensation (1/5)

in 1 Electronic PH Meter with TDS EC Salinity Temperature, High Accuracy IP67 Waterproof Multi-parameter pH Tester, Pool Water Salinity pH Tester with Automatic Temp Compensation

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7 in 1 Water Tester for Pools and Spas, 100 Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine (1/5)

7 in 1 Water Tester for Pools and Spas, 100 Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine

~~£47.46~~

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150Pcs Water Quality Test Paper Drinking Water Test Strips Swimming Pool Water Test Kit (1/4)

150Pcs Water Quality Test Paper Drinking Water Test Strips Swimming Pool Water Test Kit (2/4)

150Pcs Water Quality Test Paper Drinking Water Test Strips Swimming Pool Water Test Kit

~~£51.38~~

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Chlorine solar float with colored lights - AquaForge (1/5)

Chlorine solar float with colored lights - AquaForge (2/5)

Chlorine solar float with colored lights - AquaForge (3/5)

Chlorine solar float with colored lights - AquaForge

Electronic 5-in-1 pH meter – Measures pH, TDS, EC, salinity and temperature – LCD display with precise readings – Suitable for drinking water, aquariums, swimming pools, etc. – Color B (1/5)

Electronic 5-in-1 pH meter – Measures pH, TDS, EC, salinity and temperature – LCD display with precise readings – Suitable for drinking water, aquariums, swimming pools, etc. – Color B

~~£48.49~~

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Electronic 5-in-1 pH meter – Measures pH, TDS, EC, salinity and temperature – LCD display with precise readings – Suitable for drinking water, aquariums, swimming pools, etc. – Color B

~~£48.49~~

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5-in-1 Water Quality Detector Salinity (Celsius: 0.1-80.0 ℃) MKK76 (1/4)

5-in-1 Water Quality Detector Salinity (Celsius: 0.1-80.0 ℃) MKK76 (2/4)

5-in-1 Water Quality Detector Salinity (Celsius: 0.1-80.0 ℃) MKK76

~~£47.59~~

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Electronic PH Tester, 4 in 1 Swimming Pool Water Tester, PH/TDS/EC/TEMP, High Precision PH Meter with Resolution 0.01, for Drinking Water, Aquarium, Spas (1/4)

Electronic PH Tester, 4 in 1 Swimming Pool Water Tester, PH/TDS/EC/TEMP, High Precision PH Meter with Resolution 0.01, for Drinking Water, Aquarium, Spas

~~£50.65~~

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Water quality detector tap water electrolyzer household water quality water quality electrolyzer shipped without battery, EU 220 V (1/5)

Water quality detector tap water electrolyzer household water quality water quality electrolyzer shipped without battery, EU 220 V (2/5)

Water quality detector tap water electrolyzer household water quality water quality electrolyzer shipped without battery, EU 220 V (3/5)

Water quality detector tap water electrolyzer household water quality water quality electrolyzer shipped without battery, EU 220 V

~~£52.67~~

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3 in 1 Water and Soil Quality Tester Kit, Blue/Green (1/5)

3 in 1 Water and Soil Quality Tester Kit, Blue/Green (2/5)

3 in 1 Water and Soil Quality Tester Kit, Blue/Green (3/5)

3 in 1 Water and Soil Quality Tester Kit, Blue/Green

~~£47.42~~

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CL100 Chlorinator Lid with O-ring, Watertight Seal (1/4)

CL100 Chlorinator Lid with O-ring, Watertight Seal (2/4)

CL100 Chlorinator Lid with O-ring, Watertight Seal

50 Pcs 9 in 1 Drinking Water Test Strips, pH Test Strips for Swimming Pool and Spa Water, Water Hardness Test Strips for Aquarium, Pool Test Strips for pH, Nitrite, Chlorine, and Pool Hardness Analysi (1/4)

50 Pcs 9 in 1 Drinking Water Test Strips, pH Test Strips for Swimming Pool and Spa Water, Water Hardness Test Strips for Aquarium, Pool Test Strips for pH, Nitrite, Chlorine, and Pool Hardness Analysi

~~£50.03~~

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Electronic pH Meter, 5-in-1 Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool (1/4)

Electronic pH Meter, 5-in-1 Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool

~~£49.66~~

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2 in 1 Water Quality Tester Digital Chlorine pH Tester, CL2 Portable with Large Screen for Swimming Pool Spa Water Quality Analyzer (1/5)

2 in 1 Water Quality Tester Digital Chlorine pH Tester, CL2 Portable with Large Screen for Swimming Pool Spa Water Quality Analyzer (2/5)

2 in 1 Water Quality Tester Digital Chlorine pH Tester, CL2 Portable with Large Screen for Swimming Pool Spa Water Quality Analyzer (3/5)

2 in 1 Water Quality Tester Digital Chlorine pH Tester, CL2 Portable with Large Screen for Swimming Pool Spa Water Quality Analyzer

~~£42.15~~

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Inbagno – Testeur électronique de qualité d'eau pour piscine – Mesure pH et chlore – Câble 130 mm – Compatible avec piscines et SPA familiaux (1/4)

Inbagno – Testeur électronique de qualité d'eau pour piscine – Mesure pH et chlore – Câble 130 mm – Compatible avec piscines et SPA familiaux (2/4)

Inbagno – Testeur électronique de qualité d'eau pour piscine – Mesure pH et chlore – Câble 130 mm – Compatible avec piscines et SPA familiaux

~~£41.57~~

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Automatic pH meter, digital water analyzer, especially for swimming pools, spas and acuarios. (1/4)

Automatic pH meter, digital water analyzer, especially for swimming pools, spas and acuarios. (2/4)

Automatic pH meter, digital water analyzer, especially for swimming pools, spas and acuarios.

~~£60.99~~

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7 in 1 (0.01) High Accuracy Digital pH Water Quality Tester (TDS, EC, Salinity, Temperature, ORP, SG, pH) for Drinking Water, Hydroponics, Plants, Aquariums and (1/4)

7 in 1 (0.01) High Accuracy Digital pH Water Quality Tester (TDS, EC, Salinity, Temperature, ORP, SG, pH) for Drinking Water, Hydroponics, Plants, Aquariums and

~~£61.99~~

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Wasserqualitätstest, digitaler PH-Chlortester, Schwimmbadwasseranalyse (ohne Batterie) (1/4)

Wasserqualitätstest, digitaler PH-Chlortester, Schwimmbadwasseranalyse (ohne Batterie) (2/4)

Wasserqualitätstest, digitaler PH-Chlortester, Schwimmbadwasseranalyse (ohne Batterie)

~~£60.99~~

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3-teiliger Wasserqualitättester, electronic pH-Meter-Tester, TDS- und EC-Meter-Temperatur, Mineralerkennungsstift, 4-in-1-Wasserqualitättester mit LCD-Display, high Genauigkeit 0.01 – TRIM (1/4)

3-teiliger Wasserqualitättester, electronic pH-Meter-Tester, TDS- und EC-Meter-Temperatur, Mineralerkennungsstift, 4-in-1-Wasserqualitättester mit LCD-Display, high Genauigkeit 0.01 – TRIM

~~£60.99~~

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3-in-1 Water Quality Tester PH-986, pH/TDS/TEMP Test Pen, Multifunctional Portable Meter (1/5)

3-in-1 Water Quality Tester PH-986, pH/TDS/TEMP Test Pen, Multifunctional Portable Meter (2/5)

3-in-1 Water Quality Tester PH-986, pH/TDS/TEMP Test Pen, Multifunctional Portable Meter (3/5)

3-in-1 Water Quality Tester PH-986, pH/TDS/TEMP Test Pen, Multifunctional Portable Meter

~~£50.94~~

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5-in-1 pH/TDS/EC/Salinity/Temperature Meter, Water Quality Monitor Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums (1/5)

5-in-1 pH/TDS/EC/Salinity/Temperature Meter, Water Quality Monitor Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums (2/5)

5-in-1 pH/TDS/EC/Salinity/Temperature Meter, Water Quality Monitor Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums (3/5)

5-in-1 pH/TDS/EC/Salinity/Temperature Meter, Water Quality Monitor Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums

~~£63.98~~

Free shipping

Water quality detector, tap water electrolyzer, domestic water quality electrolyzer, shipped without battery, EU 220 V (1/5)

Water quality detector, tap water electrolyzer, domestic water quality electrolyzer, shipped without battery, EU 220 V (2/5)

Water quality detector, tap water electrolyzer, domestic water quality electrolyzer, shipped without battery, EU 220 V (3/5)

Water quality detector, tap water electrolyzer, domestic water quality electrolyzer, shipped without battery, EU 220 V

~~£62.38~~

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5 in 1 electronic PH meter tester, PH meter with retro-illuminated LCD panel, water quality tester to test pH/TDS/EC/temperature/salinity, for drinking water/acuario/swimming pool (1/4)

5 in 1 electronic PH meter tester, PH meter with retro-illuminated LCD panel, water quality tester to test pH/TDS/EC/temperature/salinity, for drinking water/acuario/swimming pool

~~£42.19~~

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5 in 1 Electronic pH Meter for Swimming Pools, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Salt Tester for Drinking Water, Aquariums and Swimming Pools. (1/5)

5 in 1 Electronic pH Meter for Swimming Pools, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Display, Salt Tester for Drinking Water, Aquariums and Swimming Pools.

~~£63.35~~

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Swimming Pool Salt Tester, Swimming Pool Salinity Tester 0-199.9 ppt, digital pen for testing the salinity of sea water and salt water. (1/4)

Swimming Pool Salt Tester, Swimming Pool Salinity Tester 0-199.9 ppt, digital pen for testing the salinity of sea water and salt water. (2/4)

Swimming Pool Salt Tester, Swimming Pool Salinity Tester 0-199.9 ppt, digital pen for testing the salinity of sea water and salt water.

~~£56.09~~

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PenType Digital Salinity Tester, Salinity Meter for Saltwater and Seawater Swimming Pools (1/5)

PenType Digital Salinity Tester, Salinity Meter for Saltwater and Seawater Swimming Pools (2/5)

PenType Digital Salinity Tester, Salinity Meter for Saltwater and Seawater Swimming Pools (3/5)

PenType Digital Salinity Tester, Salinity Meter for Saltwater and Seawater Swimming Pools

~~£46.28~~

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Swimming Pool Salinity Tester Digital Pen 0-199.9 PPT Measuring Seawater and Saltwater (1/4)

Swimming Pool Salinity Tester Digital Pen 0-199.9 PPT Measuring Seawater and Saltwater (2/4)

Swimming Pool Salinity Tester Digital Pen 0-199.9 PPT Measuring Seawater and Saltwater

~~£57.66~~

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Digital LCD Water Quality Test Pen Purity Filter TDS Meter Tester 0-9999 PPM Temperature Blue (1/4)

Digital LCD Water Quality Test Pen Purity Filter TDS Meter Tester 0-9999 PPM Temperature Blue (2/4)

Digital LCD Water Quality Test Pen Purity Filter TDS Meter Tester 0-9999 PPM Temperature Blue

~~£46.17~~

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4 in 1 Water Quality PH Tester with TDS EC Temperature Measurement LCD Screen Auto Calibration Swimming Pool Aquarium (1/4)

4 in 1 Water Quality PH Tester with TDS EC Temperature Measurement LCD Screen Auto Calibration Swimming Pool Aquarium (2/4)

4 in 1 Water Quality PH Tester with TDS EC Temperature Measurement LCD Screen Auto Calibration Swimming Pool Aquarium

~~£45.99~~

Free shipping

Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit (1/4)

Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit (2/4)

Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit

~~£45.99~~

Free shipping

in 1 Electronic pH Meter Tester, pH Meter with Backlit LCD Screen, Water Quality Tester for Testing pH/TDS/EC/Temperature/Salinity, for Drinking Water/Aquariums/Pools (1/5)

in 1 Electronic pH Meter Tester, pH Meter with Backlit LCD Screen, Water Quality Tester for Testing pH/TDS/EC/Temperature/Salinity, for Drinking Water/Aquariums/Pools

~~£46.99~~

Free shipping

Portable 4-in-1 pH/TDS/EC/temperature tester with temperature compensation and automatic shut-off for swimming pools, drinking water, and aquariums. (1/5)

Portable 4-in-1 pH/TDS/EC/temperature tester with temperature compensation and automatic shut-off for swimming pools, drinking water, and aquariums.

~~£42.99~~

Free shipping

PH Meter Electronic 5 in 1 with TDS EC Salinite Temperature, ph Tester Multi-parameters waterproof IP67 of High precision, Tester ph Salinite Pool Water with cal compensation automatic (1/4)

PH Meter Electronic 5 in 1 with TDS EC Salinite Temperature, ph Tester Multi-parameters waterproof IP67 of High precision, Tester ph Salinite Pool Water with cal compensation automatic

~~£69.52~~

Free shipping

5-in-1 Digital Water Quality Tester (1/5)

5-in-1 Digital Water Quality Tester (2/5)

5-in-1 Digital Water Quality Tester (3/5)

5-in-1 Digital Water Quality Tester

~~£58.00~~

Free shipping

Water Quality Test Digital Chlorine pH Tester Swimming Pool Water Analysis (Battery-Free) (1/5)

Water Quality Test Digital Chlorine pH Tester Swimming Pool Water Analysis (Battery-Free) (2/5)

Water Quality Test Digital Chlorine pH Tester Swimming Pool Water Analysis (Battery-Free) (3/5)

Water Quality Test Digital Chlorine pH Tester Swimming Pool Water Analysis (Battery-Free)

~~£58.21~~

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5 In 1 Water Quality Tester PH TDS EC Salinity Temperature Swimming Pool Aquarium Hydroponics (1/4)

5 In 1 Water Quality Tester PH TDS EC Salinity Temperature Swimming Pool Aquarium Hydroponics (2/4)

5 In 1 Water Quality Tester PH TDS EC Salinity Temperature Swimming Pool Aquarium Hydroponics

~~£49.99~~

Free shipping

Salinity Water Quality Test, C-100 5 in 1 Salinity TDS EC Seawater Tester Multifunction Water Quality Tester with Backlight (1/4)

Salinity Water Quality Test, C-100 5 in 1 Salinity TDS EC Seawater Tester Multifunction Water Quality Tester with Backlight (2/4)

Salinity Water Quality Test, C-100 5 in 1 Salinity TDS EC Seawater Tester Multifunction Water Quality Tester with Backlight

~~£51.99~~

Free shipping

5 in 1 Swimming Pool Tester pH TDS EC Salinity Temperature Backlit Screen for Drinking Water Aquarium (1/4)

5 in 1 Swimming Pool Tester pH TDS EC Salinity Temperature Backlit Screen for Drinking Water Aquarium (2/4)

5 in 1 Swimming Pool Tester pH TDS EC Salinity Temperature Backlit Screen for Drinking Water Aquarium

~~£51.99~~

Free shipping

Electronic pH Meter, 5 in 1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquariums and Hot Tubs (1/5)

Electronic pH Meter, 5 in 1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquariums and Hot Tubs

~~£50.99~~

Free shipping

Electronic pH Tester, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquarium, Spas (1/5)

Electronic pH Tester, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquarium, Spas

~~£50.99~~

Free shipping

Electronic PH Tester, 10 in 1 Swimming Pool Water Tester with Backlight, PH/TDS/SG/EC/ORP/H2/Salinity/Temperature/Nutrient Solution Fertility/㏁Resistance with ATC, High Resolution PH Meter, Accuracy 0 (1/4)

Electronic PH Tester, 10 in 1 Swimming Pool Water Tester with Backlight, PH/TDS/SG/EC/ORP/H2/Salinity/Temperature/Nutrient Solution Fertility/㏁Resistance with ATC, High Resolution PH Meter, Accuracy 0

~~£56.99~~

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pH Meter, 5-in-1 pH/TDS/EC/Salinity/Thermometer, LCD Screen pH Tester, Automatic Temperature Compensation, Electronic pH Meter, Suitable for Drinking Water, Aquariums, Swimming Pools (1/4)

pH Meter, 5-in-1 pH/TDS/EC/Salinity/Thermometer, LCD Screen pH Tester, Automatic Temperature Compensation, Electronic pH Meter, Suitable for Drinking Water, Aquariums, Swimming Pools

~~£49.99~~

Free shipping

Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquarium, Spas

~~£50.99~~

Free shipping

5-in-1pH Meter,PH,TDS,EC,Salinity,Thermometer,Pool pH Tester with Backlit LCD Display and Temperature Compensation (1/4)

5-in-1pH Meter,PH,TDS,EC,Salinity,Thermometer,Pool pH Tester with Backlit LCD Display and Temperature Compensation (2/4)

5-in-1pH Meter,PH,TDS,EC,Salinity,Thermometer,Pool pH Tester with Backlit LCD Display and Temperature Compensation

~~£51.13~~

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Combined Digital pH and TDS Tester, 0.05 pH pH Tester with High Reading Accuracy +/- 2% TDS Tester, Water Quality Tester for Drinking Water/Swimming Pool/Aquarium/Swimming Pools（Bla (1/4)

Combined Digital pH and TDS Tester, 0.05 pH pH Tester with High Reading Accuracy +/- 2% TDS Tester, Water Quality Tester for Drinking Water/Swimming Pool/Aquarium/Swimming Pools（Bla

~~£50.87~~

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Electronic pH Meter, 5 in 1 Swimming Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Screen, Swimming Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool (1/5)

Electronic pH Meter, 5 in 1 Swimming Pool Tester Kit, pH/TDS/EC/Salinity/Temperature Tester, VA Backlit Screen, Swimming Pool Salt Tester, for Drinking Water, Aquarium, Swimming Pool

~~£47.56~~

Free shipping

Salinity Tester 0-199.9 Ppt Swimming Pool Salt Tester Swimming Pool Salt Meter Digital Pen Type Swimming Pool Salinity Tester for Seawater/Salt Water Salinity Testing (1/5)

Salinity Tester 0-199.9 Ppt Swimming Pool Salt Tester Swimming Pool Salt Meter Digital Pen Type Swimming Pool Salinity Tester for Seawater/Salt Water Salinity Testing

~~£48.83~~

Free shipping