Swimming pool and hot tub maintenance

Kcvv – 5-in-1 Digital pH Tester – Backlit LCD Screen – Measures pH/TDS/EC/Temperature/Salinity – For Drinking Water/Aquariums/Swimming Pools – 5-in-1 Tester (1/4)

Kcvv – 5-in-1 Digital pH Tester – Backlit LCD Screen – Measures pH/TDS/EC/Temperature/Salinity – For Drinking Water/Aquariums/Swimming Pools – 5-in-1 Tester

[NEVER USED] Combo Digital PH and TDS Meter, 0.05 ph pH Tester with High Accuracy +/-2% Reading Accuracy TDS Tester, Water Quality Tester for Drinking Water/Pool/Aquarium/Swimming Pools (Brass (1/3)

[NEVER USED] Combo Digital PH and TDS Meter, 0.05 ph pH Tester with High Accuracy +/-2% Reading Accuracy TDS Tester, Water Quality Tester for Drinking Water/Pool/Aquarium/Swimming Pools (Brass

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750W Airless Paint Sprayer with Pressure Gauge - Max Flow Rate: 1.2 L/min - Pressure: 250 Bar - Suitable for paints and wood stains - Includes: 10 m hose - Spray nozzle - DIY in the (1/5)

750W Airless Paint Sprayer with Pressure Gauge - Max Flow Rate: 1.2 L/min - Pressure: 250 Bar - Suitable for paints and wood stains - Includes: 10 m hose - Spray nozzle - DIY in the

~~£544.99~~

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5-in-1 Digital Water Quality Tester pH/TDS/EC/Temperature - For Swimming Pools, Drinking Water, Aquariums (1/4)

5-in-1 Digital Water Quality Tester pH/TDS/EC/Temperature - For Swimming Pools, Drinking Water, Aquariums (2/4)

5-in-1 Digital Water Quality Tester pH/TDS/EC/Temperature - For Swimming Pools, Drinking Water, Aquariums

TONCHEAN Water Quality Tester Electrolyzer Water Quality Tester Electrolysis Iron Rods TDS Tester Electrolyzer Fast water quality control for all water types (Jau (1/4)

TONCHEAN Water Quality Tester Electrolyzer Water Quality Tester Electrolysis Iron Rods TDS Tester Electrolyzer Fast water quality control for all water types (Jau

Coleman Airjet AGP ChemConnect P08220 chemical chlorine separator compatible with Intex

~~£23.09~~

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Aiperq pH Meter, 5-in-1 pH/TDS/EC/ORP/Temperature Tester, Water Quality Monitor for Swimming Pools, Hydroponics, Drinking Water, Aquariums (1/4)

Aiperq pH Meter, 5-in-1 pH/TDS/EC/ORP/Temperature Tester, Water Quality Monitor for Swimming Pools, Hydroponics, Drinking Water, Aquariums (2/4)

Aiperq pH Meter, 5-in-1 pH/TDS/EC/ORP/Temperature Tester, Water Quality Monitor for Swimming Pools, Hydroponics, Drinking Water, Aquariums (3/4)

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

Swimming pool water quality tester – Measures chlorine, TDS and pH value – Accurate and reliable--DTEKGAZ

~~£37.64~~

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CL100 Chlorinator Lid with O-ring, Watertight Seal (1/5)

CL100 Chlorinator Lid with O-ring, Watertight Seal (2/5)

CL100 Chlorinator Lid with O-ring, Watertight Seal (3/5)

CL100 Chlorinator Lid with O-ring, Watertight Seal

~~£59.16~~

[NEVER USED] 4-in-1 pH Meter Water – pH/TDS/EC/Temperature Meter for Aquarium, Pool, Drinking Water, Swimming Pool (1/4)

[NEVER USED] 4-in-1 pH Meter Water – pH/TDS/EC/Temperature Meter for Aquarium, Pool, Drinking Water, Swimming Pool (2/4)

[NEVER USED] 4-in-1 pH Meter Water – pH/TDS/EC/Temperature Meter for Aquarium, Pool, Drinking Water, Swimming Pool

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pH Tester, 2 in 1 Portable Chlorine and pH CL2 Meter, Water Quality Analysis, Measurement and Monitoring for Pools, Spas and Spring Water (1/5)

pH Tester, 2 in 1 Portable Chlorine and pH CL2 Meter, Water Quality Analysis, Measurement and Monitoring for Pools, Spas and Spring Water (2/5)

pH Tester, 2 in 1 Portable Chlorine and pH CL2 Meter, Water Quality Analysis, Measurement and Monitoring for Pools, Spas and Spring Water (3/5)

pH Tester, 2 in 1 Portable Chlorine and pH CL2 Meter, Water Quality Analysis, Measurement and Monitoring for Pools, Spas and Spring Water (4/5)

pH Tester, 2 in 1 Portable Chlorine and pH CL2 Meter, Water Quality Analysis, Measurement and Monitoring for Pools, Spas and Spring Water

Water quality tester, 2 in 1 pH tester and chlorine meter, CL2 chlorine water quality measuring device for swimming pool aquariums (1/5)

Water quality tester, 2 in 1 pH tester and chlorine meter, CL2 chlorine water quality measuring device for swimming pool aquariums (2/5)

Water quality tester, 2 in 1 pH tester and chlorine meter, CL2 chlorine water quality measuring device for swimming pool aquariums (3/5)

Water quality tester, 2 in 1 pH tester and chlorine meter, CL2 chlorine water quality measuring device for swimming pool aquariums (4/5)

Water quality tester, 2 in 1 pH tester and chlorine meter, CL2 chlorine water quality measuring device for swimming pool aquariums

Swimming pool water quality test kit, residual chlorine, pH test kit, water testing reagent set, OTO test reagent (1/4)

Swimming pool water quality test kit, residual chlorine, pH test kit, water testing reagent set, OTO test reagent (2/4)

Swimming pool water quality test kit, residual chlorine, pH test kit, water testing reagent set, OTO test reagent

~~£27.48~~

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phe Testeur d'eau 5 en 1 Testeur Multifonctionnel de qualité de l'eau, TDS/EC/Salinité/PH/Température numérique pour Eau Potable, Piscine, Aquarium, Aquarium, Culture hydroponique (1/5)

phe Testeur d'eau 5 en 1 Testeur Multifonctionnel de qualité de l'eau, TDS/EC/Salinité/PH/Température numérique pour Eau Potable, Piscine, Aquarium, Aquarium, Culture hydroponique

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14-in-1 test strips for swimming pools, packaged in bottles, 100 strips per pack, for residual chlorine, pH, alkalinity, drinking water, hot springs and ponds. (1/4)

14-in-1 test strips for swimming pools, packaged in bottles, 100 strips per pack, for residual chlorine, pH, alkalinity, drinking water, hot springs and ponds.

~~£40.59~~

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Battery-free TDS water quality meter for analyzing minerals and impurities--BIEMMEDUE (1/3)

Battery-free TDS water quality meter for analyzing minerals and impurities--BIEMMEDUE

~~£41.18~~

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black plastic dual TDS water quality analyzer, wall-mounted TD water quality analyzer, with integrated TDS. (1/5)

black plastic dual TDS water quality analyzer, wall-mounted TD water quality analyzer, with integrated TDS. (2/5)

black plastic dual TDS water quality analyzer, wall-mounted TD water quality analyzer, with integrated TDS. (3/5)

black plastic dual TDS water quality analyzer, wall-mounted TD water quality analyzer, with integrated TDS.

~~£28.32~~

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black plastic dual TDS water quality analyzer, wall-mounted TD water quality analyzer, with integrated TDS.

~~£28.32~~

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Water Quality Tester, Swimming Pool Water Tester Digital Water Quality Tester Hydrogen Tester Pen Highly Sensitive Water Quality Tester for Aquatic Plants Water (1/5)

Water Quality Tester, Swimming Pool Water Tester Digital Water Quality Tester Hydrogen Tester Pen Highly Sensitive Water Quality Tester for Aquatic Plants Water

~~£47.99~~

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Saltwater Salinity Tester, Swimming Pool Salt Tester, Multifunctional Water Quality Tester with Backlight for Seawater, Aquariums C-100 5-in-1 Saltwater Swimming Pool Test Kit (1/4)

Saltwater Salinity Tester, Swimming Pool Salt Tester, Multifunctional Water Quality Tester with Backlight for Seawater, Aquariums C-100 5-in-1 Saltwater Swimming Pool Test Kit

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Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--DTEKGAZ (1/5)

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--DTEKGAZ (2/5)

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--DTEKGAZ (3/5)

Portable digital salinity meter for kitchen, food and aquarium – Accurate salinity measurement in seawater and brackish water--DTEKGAZ

~~£38.39~~

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[NEVER USED] Swimming Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit (1/4)

[NEVER USED] Swimming Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit (2/4)

[NEVER USED] Swimming Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit

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3-in-1 Multifunctional Digital pH Meter PH/EC/TEMP Tester (1/5)

3-in-1 Multifunctional Digital pH Meter PH/EC/TEMP Tester (2/5)

3-in-1 Multifunctional Digital pH Meter PH/EC/TEMP Tester (3/5)

3-in-1 Multifunctional Digital pH Meter PH/EC/TEMP Tester

~~£46.99~~

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Chlorine and pH tester CL2 with probe, water quality analyzer for swimming pools, refill accessory for spa tester, pool pH tester, electronic pool pH and chlorine tester (1/5)

Chlorine and pH tester CL2 with probe, water quality analyzer for swimming pools, refill accessory for spa tester, pool pH tester, electronic pool pH and chlorine tester

~~£46.99~~

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The three-piece set includes: 1) a P03821 chlorinator + a VI filter + a P665 stand 2) a replacement chemical chlorine dispenser for swimming pools, a Lay-Z-Spa chlorine dispenser (1/5)

The three-piece set includes: 1) a P03821 chlorinator + a VI filter + a P665 stand 2) a replacement chemical chlorine dispenser for swimming pools, a Lay-Z-Spa chlorine dispenser

~~£63.77~~

[NEVER USED] Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test (1/4)

[NEVER USED] Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test (2/4)

[NEVER USED] Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test

[NEVER USED] Chlorine, pH and Chlorine Cl2 Tester – Water Level Monitoring for Pool, Spa – with Probe (1/4)

[NEVER USED] Chlorine, pH and Chlorine Cl2 Tester – Water Level Monitoring for Pool, Spa – with Probe (2/4)

[NEVER USED] Chlorine, pH and Chlorine Cl2 Tester – Water Level Monitoring for Pool, Spa – with Probe

Water quality analysis kit with electrolyzer for water filters, European plug 220 V--BIEMMEDUE (1/3)

Water quality analysis kit with electrolyzer for water filters, European plug 220 V--BIEMMEDUE

~~£42.02~~

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3-in-1 Portable Digital TDS PH TEMP Meter Water Quality Tester Purity Test Pen (1/5)

3-in-1 Portable Digital TDS PH TEMP Meter Water Quality Tester Purity Test Pen (2/5)

3-in-1 Portable Digital TDS PH TEMP Meter Water Quality Tester Purity Test Pen (3/5)

3-in-1 Portable Digital TDS PH TEMP Meter Water Quality Tester Purity Test Pen

~~£43.99~~

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5-in-1 Pool Tester: pH, TDS, EC, Salinity, Temperature, Backlit Screen for Drinking Water and Aquariums (1/4)

5-in-1 Pool Tester: pH, TDS, EC, Salinity, Temperature, Backlit Screen for Drinking Water and Aquariums (2/4)

5-in-1 Pool Tester: pH, TDS, EC, Salinity, Temperature, Backlit Screen for Drinking Water and Aquariums

~~£43.99~~

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

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

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

~~£43.99~~

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PC102 Pool Water Quality Analyzer CL2 and pH, Portable Residual Chlorine Meter for Swimming Pools--BIEMMEDUE

~~£43.94~~

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[NEVER USED] Swimming Pool Salinity Tester, 5-in-1 Digital Seawater Salinity Tester, IP67 Waterproof Test Kit

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[NEVER USED] Water Quality Test Digital PH Chlorine Tester Swimming Pool Water Analysis (No Battery) (1/3)

[NEVER USED] Water Quality Test Digital PH Chlorine Tester Swimming Pool Water Analysis (No Battery)

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Chlorinator cover for Hayward CLX200C only, CL200 and CL220 (1/5)

Chlorinator cover for Hayward CLX200C only, CL200 and CL220 (2/5)

Chlorinator cover for Hayward CLX200C only, CL200 and CL220 (3/5)

Chlorinator cover for Hayward CLX200C only, CL200 and CL220

~~£65.66~~

4-in-1 Water Quality Test Pen, pH/EC/TDS/TEMP Tester for Swimming Pool and Beverage Laboratory (1/5)

4-in-1 Water Quality Test Pen, pH/EC/TDS/TEMP Tester for Swimming Pool and Beverage Laboratory (2/5)

4-in-1 Water Quality Test Pen, pH/EC/TDS/TEMP Tester for Swimming Pool and Beverage Laboratory (3/5)

4-in-1 Water Quality Test Pen, pH/EC/TDS/TEMP Tester for Swimming Pool and Beverage Laboratory

~~£44.99~~

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Portable Mini Pen Type ORP Meter Redox Meter Negative Potential Meter Water Quality Tester Pen Analyzer for Aquarium Swimming Pool (1/5)

Portable Mini Pen Type ORP Meter Redox Meter Negative Potential Meter Water Quality Tester Pen Analyzer for Aquarium Swimming Pool (2/5)

Portable Mini Pen Type ORP Meter Redox Meter Negative Potential Meter Water Quality Tester Pen Analyzer for Aquarium Swimming Pool (3/5)

Portable Mini Pen Type ORP Meter Redox Meter Negative Potential Meter Water Quality Tester Pen Analyzer for Aquarium Swimming Pool

~~£44.99~~

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pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (1/5)

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (2/5)

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor (3/5)

pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor

~~£45.99~~

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5-in-1 pH Meter: pH/TDS/EC/Salinity/Thermometer, LCD, Automatic Temperature Compensation, for Drinking Water and Aquariums (1/5)

5-in-1 pH Meter: pH/TDS/EC/Salinity/Thermometer, LCD, Automatic Temperature Compensation, for Drinking Water and Aquariums (2/5)

5-in-1 pH Meter: pH/TDS/EC/Salinity/Thermometer, LCD, Automatic Temperature Compensation, for Drinking Water and Aquariums (3/5)

5-in-1 pH Meter: pH/TDS/EC/Salinity/Thermometer, LCD, Automatic Temperature Compensation, for Drinking Water and Aquariums

~~£45.99~~

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pH & Cl2 Test 2 in 1 Electronic Digital SPA Water Quality Tester, Residual Chlorine Analysis Detector Monitor

~~£45.99~~

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

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

~~£35.70~~

[NEVER USED] PH Meter Tester, 4-in-1 Electronic Swimming Pool PH Tester, PH TDS EC and Temperature Meter, Water Quality Tester with LCD Display and Reading Accuracy, for Swimming Pool, Aquarium (1/4)

[NEVER USED] PH Meter Tester, 4-in-1 Electronic Swimming Pool PH Tester, PH TDS EC and Temperature Meter, Water Quality Tester with LCD Display and Reading Accuracy, for Swimming Pool, Aquarium

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[NEVER USED] PH Meter Tester, 4-in-1 Electronic Swimming Pool PH Tester, PH TDS EC and Temperature Meter, Water Quality Tester with LCD Display and Reading Accuracy, for Swimming Pool, Aquarium

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Swimming pool water quality tester – Measures chlorine, TDS and pH value – Accurate and reliable

~~£31.79~~

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Digital Swimming Pool PH Tester Drinking Water Quality Quick (1/5)

Digital Swimming Pool PH Tester Drinking Water Quality Quick (2/5)

Digital Swimming Pool PH Tester Drinking Water Quality Quick (3/5)

Digital Swimming Pool PH Tester Drinking Water Quality Quick

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2 in 1 Digital pH Temperature Monitor Tester Sensor Kit 0-14.0pH Measures Automatic Calibration (1/5)

2 in 1 Digital pH Temperature Monitor Tester Sensor Kit 0-14.0pH Measures Automatic Calibration (2/5)

2 in 1 Digital pH Temperature Monitor Tester Sensor Kit 0-14.0pH Measures Automatic Calibration (3/5)

2 in 1 Digital pH Temperature Monitor Tester Sensor Kit 0-14.0pH Measures Automatic Calibration (4/5)

2 in 1 Digital pH Temperature Monitor Tester Sensor Kit 0-14.0pH Measures Automatic Calibration

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4-in-1 Electronic pH Meter, Water Quality Tester pH/TDS/EC/Temperature, Measurement Accuracy 0-14 pH, 2% Reading Accuracy, Set 0-19999 PPM, for Swimming Pool, Aquarium, Drinking Water - LIAIKI (1/5)

4-in-1 Electronic pH Meter, Water Quality Tester pH/TDS/EC/Temperature, Measurement Accuracy 0-14 pH, 2% Reading Accuracy, Set 0-19999 PPM, for Swimming Pool, Aquarium, Drinking Water - LIAIKI

Ulisem Two Sets For Hayward Clx220ga Cl220 Offline Chemical Feeder Connection Kit with Saddle Clamp (1/4)

Ulisem Two Sets For Hayward Clx220ga Cl220 Offline Chemical Feeder Connection Kit with Saddle Clamp (2/4)

Ulisem Two Sets For Hayward Clx220ga Cl220 Offline Chemical Feeder Connection Kit with Saddle Clamp

~~£66.43~~

3-in-1 Multi-parameter Water Quality Monitor with LCD Display pH/EC/TEMP Water Quality Tester with Transparent Case (1/5)

3-in-1 Multi-parameter Water Quality Monitor with LCD Display pH/EC/TEMP Water Quality Tester with Transparent Case (2/5)

3-in-1 Multi-parameter Water Quality Monitor with LCD Display pH/EC/TEMP Water Quality Tester with Transparent Case (3/5)

3-in-1 Multi-parameter Water Quality Monitor with LCD Display pH/EC/TEMP Water Quality Tester with Transparent Case

~~£130.70~~

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PH & CL2 Test 2 in 1 Electronic SPA Digital Water Quality Tester Residual Chlorine Analysis Detector Monitor (1/5)

PH & CL2 Test 2 in 1 Electronic SPA Digital Water Quality Tester Residual Chlorine Analysis Detector Monitor (2/5)

PH & CL2 Test 2 in 1 Electronic SPA Digital Water Quality Tester Residual Chlorine Analysis Detector Monitor (3/5)

PH & CL2 Test 2 in 1 Electronic SPA Digital Water Quality Tester Residual Chlorine Analysis Detector Monitor

~~£64.38~~

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5-in-1 Electronic PH Meter Tester, Measures PH & TDS & EC Salinity & Temperature Water Quality Tester, LCD Display and Reading Accuracy, for Drinking Water, Aquariums, Swimming Pools etc. (1/5)

5-in-1 Electronic PH Meter Tester, Measures PH & TDS & EC Salinity & Temperature Water Quality Tester, LCD Display and Reading Accuracy, for Drinking Water, Aquariums, Swimming Pools etc.

~~£64.38~~

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

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

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

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

~~£64.38~~

Free shipping

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

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

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

PH Meter, 5 in 1 PH/TDS/EC/ORP/Temperature Meter Tester, Water Quality Monitor Tester for Swimming Pools, Hydroponics, Drinking Water, Aquariums

~~£66.68~~

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Chlorine and pH CL2 Tester with Probe, Swimming Pool Water Quality Analyzer, Replacement Accessory for Swimming Pool pH Tester, Cl Tester, Electronic Swimming Pool pH and CH Tester (1/5)

Chlorine and pH CL2 Tester with Probe, Swimming Pool Water Quality Analyzer, Replacement Accessory for Swimming Pool pH Tester, Cl Tester, Electronic Swimming Pool pH and CH Tester

~~£66.68~~

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ORP-986 Portable Pen Type ORP Meter Water Quality Tester Analyzer Experiment Detection Monitor 6.9 x 1.3 x 0.7 inch Used in Industry and Experiment (Blue Backlight), pH, Conductivity and Tds (1/5)

ORP-986 Portable Pen Type ORP Meter Water Quality Tester Analyzer Experiment Detection Monitor 6.9 x 1.3 x 0.7 inch Used in Industry and Experiment (Blue Backlight), pH, Conductivity and Tds

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Combined digital pH meter and TDS, 0.05ph pH tester with high accuracy +/- 2% reading accuracy TDS tester, water quality tester for drinking water / swimming pool / aquarium / swimming pools (brewing) (1/4)

Combined digital pH meter and TDS, 0.05ph pH tester with high accuracy +/- 2% reading accuracy TDS tester, water quality tester for drinking water / swimming pool / aquarium / swimming pools (brewing)

~~£32.99~~

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