Swimming pool test kits

CL2 Chlorine and pH Tester, Multifunctional LCD Digital Tester, Chlorine Level Tester with Probe, For Swimming Pools and Spas (1/4)

CL2 Chlorine and pH Tester, Multifunctional LCD Digital Tester, Chlorine Level Tester with Probe, For Swimming Pools and Spas (2/4)

CL2 Chlorine and pH Tester, Multifunctional LCD Digital Tester, Chlorine Level Tester with Probe, For Swimming Pools and Spas

~~£75.76~~

Free shipping

2-in-1 ORP/TEMP digital tester, hydroponic water monitor for swimming pools and aquariums (battery not included) (1/4)

2-in-1 ORP/TEMP digital tester, hydroponic water monitor for swimming pools and aquariums (battery not included) (2/4)

2-in-1 ORP/TEMP digital tester, hydroponic water monitor for swimming pools and aquariums (battery not included)

~~£76.88~~

Free shipping

4-in-1 Digital pH/EC/TDS Tester/Meter and Temperature Meter, 0.01 pH High Precision Water Quality Tester for Household Drinking Water, Swimming Pools, and Aquariums (1/4)

4-in-1 Digital pH/EC/TDS Tester/Meter and Temperature Meter, 0.01 pH High Precision Water Quality Tester for Household Drinking Water, Swimming Pools, and Aquariums

~~£77.66~~

Free shipping

Digital pH Meter, Portable Professional pH Tester, Digital Tester for Measuring Liquid Quality, pH Chlorine Meter for Swimming Pool and Spa. (1/4)

Digital pH Meter, Portable Professional pH Tester, Digital Tester for Measuring Liquid Quality, pH Chlorine Meter for Swimming Pool and Spa. (2/4)

Digital pH Meter, Portable Professional pH Tester, Digital Tester for Measuring Liquid Quality, pH Chlorine Meter for Swimming Pool and Spa.

~~£70.88~~

Free shipping

Water Quality Tester - pH Meter - pH Measuring Device - For Hot Tubs - 3 in 1 - Portable - Digital TDS/PH - Aquarium Temperature - Swimming Pool

~~£74.31~~

Free shipping

Aiperq 16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips (1/3)

Aiperq 16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips (2/3)

Aiperq 16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips

Portable Swimming Pool Water Quality Tester – Accurate Chlorine and pH Measurement – Residual Analysis (1/4)

Portable Swimming Pool Water Quality Tester – Accurate Chlorine and pH Measurement – Residual Analysis (2/4)

Portable Swimming Pool Water Quality Tester – Accurate Chlorine and pH Measurement – Residual Analysis (3/4)

Portable Swimming Pool Water Quality Tester – Accurate Chlorine and pH Measurement – Residual Analysis

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (1/4)

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (2/4)

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable (3/4)

Electronic pool water quality tester for pH and chlorine levels, 13 cm cable

Salinity Tester 0-199.9 Ppt Pool Salt Tester Swimming Pool Salt Meter Digital Pen-Type Pool Salinity Tester for Seawater/Saltwater Salinity Testing (1/4)

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

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

5-in-1 Electronic pH Meter Tester, Measures pH & TDS & EC Salinity & Temperature Water Quality Tester, LCD Screen and Reading Accuracy, for Drinking Water, Aquariums, Swimming Pools etc. (1/4)

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

Portable pH tester, water quality tester, chlorine meter, swimming pool, spa, water quality controller, suitable for drinking water and aquarium pH testing in swimming pools (1/4)

Portable pH tester, water quality tester, chlorine meter, swimming pool, spa, water quality controller, suitable for drinking water and aquarium pH testing in swimming pools

~~£93.78~~

Free shipping

ORP Redox Tester, 1-point calibration, oxidation reduction potential, aquariums, swimming pools, water treatment systems, aquaculture, spas (1/4)

ORP Redox Tester, 1-point calibration, oxidation reduction potential, aquariums, swimming pools, water treatment systems, aquaculture, spas (2/4)

ORP Redox Tester, 1-point calibration, oxidation reduction potential, aquariums, swimming pools, water treatment systems, aquaculture, spas

~~£95.68~~

Free shipping

Water Quality Tester, Portable Digital Monitor, Portable 2-in-1 Water Quality pH CL2 Chlorine Level Tester Level Meter, pH Water Tester Chlorine Analysis Swimming Pool Test Kit (1/4)

Water Quality Tester, Portable Digital Monitor, Portable 2-in-1 Water Quality pH CL2 Chlorine Level Tester Level Meter, pH Water Tester Chlorine Analysis Swimming Pool Test Kit

8-in-1 Water Quality Tester Pen, TDS/EC/pH/Temperature/ORP/CL/Salinity Multi-Function Digital Water Test Meter,Grey

Free shipping

8-in-1 Water Quality Tester Pen, TDS/EC/pH/Temperature/ORP/CL/Salinity Multi-Function Digital Water Test Meter,Grey

Free shipping

8-in-1 Water Quality Tester Pen, TDS/EC/pH/Temperature/ORP/CL/Salinity Multi-Function Digital Water Test Meter,Grey

Free shipping

8-in-1 Water Quality Tester Pen, TDS/EC/pH/Temperature/ORP/CL/Salinity Multi-Function Digital Water Test Meter,Grey

Free shipping

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

~~£137.75~~

Free shipping

[NEVER USED] Professional 5-parameter water analysis kit, 2 handheld testers, TDS/EC/pH/Salinity measurement, digital thermometer (1/4)

[NEVER USED] Professional 5-parameter water analysis kit, 2 handheld testers, TDS/EC/pH/Salinity measurement, digital thermometer (2/4)

[NEVER USED] Professional 5-parameter water analysis kit, 2 handheld testers, TDS/EC/pH/Salinity measurement, digital thermometer

Professional 3-in-1 pH/EC/Temp Meter Water Detector Multi-parameter Digital LCD Tri-Meter Multi-Function Water Quality Monitor Multi-parameter Water Quality Tester (1/4)

Professional 3-in-1 pH/EC/Temp Meter Water Detector Multi-parameter Digital LCD Tri-Meter Multi-Function Water Quality Monitor Multi-parameter Water Quality Tester

~~£135.54~~

Free shipping

Water quality test, digital pH chlorine tester, pool water analysis (battery-free) (1/4)

Water quality test, digital pH chlorine tester, pool water analysis (battery-free) (2/4)

Water quality test, digital pH chlorine tester, pool water analysis (battery-free)

~~£76.45~~

Free shipping

PH Meter Professional Multifunctional Tester 5 in 1 Digital Multifunctional Tester PH/EC/TDS/Salinity/Thermometer Water Quality Tester Ph Meter (1/5)

PH Meter Professional Multifunctional Tester 5 in 1 Digital Multifunctional Tester PH/EC/TDS/Salinity/Thermometer Water Quality Tester Ph Meter

~~£62.99~~

Digital pH Meter, Portable Professional pH Tester, Digital Tester for Measuring Liquid Quality, pH Chlorine Meter for Swimming Pool and Spa.

~~£79.82~~

Free shipping

AIPERQ 7-in-1 pH/EC PPM CF Conductivity Meter Water Quality Tester 0.0-14.0pH / 0-19.99mS/cm Aquarium, Hydroponics Tool (1/4)

AIPERQ 7-in-1 pH/EC PPM CF Conductivity Meter Water Quality Tester 0.0-14.0pH / 0-19.99mS/cm Aquarium, Hydroponics Tool (2/4)

AIPERQ 7-in-1 pH/EC PPM CF Conductivity Meter Water Quality Tester 0.0-14.0pH / 0-19.99mS/cm Aquarium, Hydroponics Tool (3/4)

AIPERQ 7-in-1 pH/EC PPM CF Conductivity Meter Water Quality Tester 0.0-14.0pH / 0-19.99mS/cm Aquarium, Hydroponics Tool

AIPERQ 6-in-1 WiFi Water Quality Tester, Digital Multi-Parameter Water Quality Monitor (PH/Total Dissolved Solids/EC/SG/Salt/Temp) (1/4)

AIPERQ 6-in-1 WiFi Water Quality Tester, Digital Multi-Parameter Water Quality Monitor (PH/Total Dissolved Solids/EC/SG/Salt/Temp) (2/4)

AIPERQ 6-in-1 WiFi Water Quality Tester, Digital Multi-Parameter Water Quality Monitor (PH/Total Dissolved Solids/EC/SG/Salt/Temp) (3/4)

AIPERQ 6-in-1 WiFi Water Quality Tester, Digital Multi-Parameter Water Quality Monitor (PH/Total Dissolved Solids/EC/SG/Salt/Temp)

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

Dissolved Oxygen Analyzer, Digital Water Quality Tester for Measuring Dissolved Oxygen and Temperature for Freshwater Aquaculture (without backlight) (1/4)

Dissolved Oxygen Analyzer, Digital Water Quality Tester for Measuring Dissolved Oxygen and Temperature for Freshwater Aquaculture (without backlight)

~~£267.27~~

Free shipping

Swimming pool salinity tester, pH and salt water tester, 7-in-1 digital tester, swimming pool pH and salinity tester (1/3)

Swimming pool salinity tester, pH and salt water tester, 7-in-1 digital tester, swimming pool pH and salinity tester

~~£67.24~~

Free shipping

– 7-inch video intercom with 3 monitors – IR-CUT night vision – Colour TFT LCD screen – 100–240V AC power supply (1/5)

– 7-inch video intercom with 3 monitors – IR-CUT night vision – Colour TFT LCD screen – 100–240V AC power supply (2/5)

– 7-inch video intercom with 3 monitors – IR-CUT night vision – Colour TFT LCD screen – 100–240V AC power supply (3/5)

– 7-inch video intercom with 3 monitors – IR-CUT night vision – Colour TFT LCD screen – 100–240V AC power supply

~~£529.99~~

Free shipping

6-in-1 Pool Test Strips – Analyzes total chlorine, free chlorine, pH, alkalinity, cyanuric acid, and hardness – 50 pieces (1/4)

6-in-1 Pool Test Strips – Analyzes total chlorine, free chlorine, pH, alkalinity, cyanuric acid, and hardness – 50 pieces (2/4)

6-in-1 Pool Test Strips – Analyzes total chlorine, free chlorine, pH, alkalinity, cyanuric acid, and hardness – 50 pieces (3/4)

6-in-1 Pool Test Strips – Analyzes total chlorine, free chlorine, pH, alkalinity, cyanuric acid, and hardness – 50 pieces

~~£11.88~~

Free shipping

Water quality tester, portable electrolyzer, water impurity monitor, water test meter, electrolyzer machine (1/5)

Water quality tester, portable electrolyzer, water impurity monitor, water test meter, electrolyzer machine (2/5)

Water quality tester, portable electrolyzer, water impurity monitor, water test meter, electrolyzer machine (3/5)

Water quality tester, portable electrolyzer, water impurity monitor, water test meter, electrolyzer machine (4/5)

Water quality tester, portable electrolyzer, water impurity monitor, water test meter, electrolyzer machine

~~£15.28~~

Free shipping

14-in-1 Drinking Water Test Kit – Quality Test for Well and Tap Water – 50 Test Strips – Tests 14 Essential Parameters (1/5)

14-in-1 Drinking Water Test Kit – Quality Test for Well and Tap Water – 50 Test Strips – Tests 14 Essential Parameters (2/5)

14-in-1 Drinking Water Test Kit – Quality Test for Well and Tap Water – 50 Test Strips – Tests 14 Essential Parameters (3/5)

14-in-1 Drinking Water Test Kit – Quality Test for Well and Tap Water – 50 Test Strips – Tests 14 Essential Parameters (4/5)

14-in-1 Drinking Water Test Kit – Quality Test for Well and Tap Water – 50 Test Strips – Tests 14 Essential Parameters

~~£16.98~~

Free shipping

1 pc portable water quality tester/electrolyzer/water impurity monitor/test meter/electrolyzer machine (1/5)

1 pc portable water quality tester/electrolyzer/water impurity monitor/test meter/electrolyzer machine (2/5)

1 pc portable water quality tester/electrolyzer/water impurity monitor/test meter/electrolyzer machine (3/5)

1 pc portable water quality tester/electrolyzer/water impurity monitor/test meter/electrolyzer machine (4/5)

1 pc portable water quality tester/electrolyzer/water impurity monitor/test meter/electrolyzer machine

~~£16.98~~

Free shipping

14-in-1 Drinking Water Test Kit – pH, Lead, Copper, Iron, Mercury, Chlorine Test – 50 Strips – For Drinking Water and Well Water (1/5)

14-in-1 Drinking Water Test Kit – pH, Lead, Copper, Iron, Mercury, Chlorine Test – 50 Strips – For Drinking Water and Well Water (2/5)

14-in-1 Drinking Water Test Kit – pH, Lead, Copper, Iron, Mercury, Chlorine Test – 50 Strips – For Drinking Water and Well Water (3/5)

14-in-1 Drinking Water Test Kit – pH, Lead, Copper, Iron, Mercury, Chlorine Test – 50 Strips – For Drinking Water and Well Water (4/5)

14-in-1 Drinking Water Test Kit – pH, Lead, Copper, Iron, Mercury, Chlorine Test – 50 Strips – For Drinking Water and Well Water

~~£18.68~~

Free shipping

50pcs swimming pool pH value alkalinity hardness test strip (1/5)

50pcs swimming pool pH value alkalinity hardness test strip (2/5)

50pcs swimming pool pH value alkalinity hardness test strip (3/5)

50pcs swimming pool pH value alkalinity hardness test strip (4/5)

50pcs swimming pool pH value alkalinity hardness test strip

~~£22.08~~

Free shipping

16-in-1 Drinking Water Test Kit – Water Quality Test Strips – Quick and Easy Testing – 100 Pieces – Easy-100 (1/5)

16-in-1 Drinking Water Test Kit – Water Quality Test Strips – Quick and Easy Testing – 100 Pieces – Easy-100 (2/5)

16-in-1 Drinking Water Test Kit – Water Quality Test Strips – Quick and Easy Testing – 100 Pieces – Easy-100 (3/5)

16-in-1 Drinking Water Test Kit – Water Quality Test Strips – Quick and Easy Testing – 100 Pieces – Easy-100 (4/5)

16-in-1 Drinking Water Test Kit – Water Quality Test Strips – Quick and Easy Testing – 100 Pieces – Easy-100

~~£23.78~~

Free shipping

Pool PH Test Strips 50 Pack 6 in 1 for Swimming Pool / Spa / Hot Tub pH / Total Chlorine / Free Chlorine / Total Talc / Cyanide Acid / Water Hardness (1/5)

Pool PH Test Strips 50 Pack 6 in 1 for Swimming Pool / Spa / Hot Tub pH / Total Chlorine / Free Chlorine / Total Talc / Cyanide Acid / Water Hardness (2/5)

Pool PH Test Strips 50 Pack 6 in 1 for Swimming Pool / Spa / Hot Tub pH / Total Chlorine / Free Chlorine / Total Talc / Cyanide Acid / Water Hardness (3/5)

Pool PH Test Strips 50 Pack 6 in 1 for Swimming Pool / Spa / Hot Tub pH / Total Chlorine / Free Chlorine / Total Talc / Cyanide Acid / Water Hardness

Swimming Pool Test Strips. 7-in-1 Swimming Pool Test Strips. Pack of 50 strips for water quality testing of chlorine, bromine, nitrite, nitrate, hardness, total alkalinity, and pH (50). (1/5)

Swimming Pool Test Strips. 7-in-1 Swimming Pool Test Strips. Pack of 50 strips for water quality testing of chlorine, bromine, nitrite, nitrate, hardness, total alkalinity, and pH (50).

~~£25.48~~

Free shipping

Pool Spa PH Test Strips,5 in 1 Water Quality Testing Strips Kit for Hot Tubs, Swimming Pools,Accurate Quick Detection of pH, Free Chlorine/Bromine, Total Alkalinity,Total Hardness（100pcs） (1/5)

Pool Spa PH Test Strips,5 in 1 Water Quality Testing Strips Kit for Hot Tubs, Swimming Pools,Accurate Quick Detection of pH, Free Chlorine/Bromine, Total Alkalinity,Total Hardness（100pcs）

TDS-3 Drinking Water Meter LCD Digital Portable Water Quality Tester Meter Pen Temperature and PPM Water Purity Tester 0-9990 PPM Drinking Water Hydroponics (Does not test PH) (1/4)

TDS-3 Drinking Water Meter LCD Digital Portable Water Quality Tester Meter Pen Temperature and PPM Water Purity Tester 0-9990 PPM Drinking Water Hydroponics (Does not test PH)

4-in-1 Water Quality Tester – pH, TDS, EC, Temperature – Backlit LCD Display – 0.01 Accuracy for Swimming Pools and Aquaculture - 01 (1/5)

4-in-1 Water Quality Tester – pH, TDS, EC, Temperature – Backlit LCD Display – 0.01 Accuracy for Swimming Pools and Aquaculture - 01 (2/5)

4-in-1 Water Quality Tester – pH, TDS, EC, Temperature – Backlit LCD Display – 0.01 Accuracy for Swimming Pools and Aquaculture - 01 (3/5)

4-in-1 Water Quality Tester – pH, TDS, EC, Temperature – Backlit LCD Display – 0.01 Accuracy for Swimming Pools and Aquaculture - 01 (4/5)

4-in-1 Water Quality Tester – pH, TDS, EC, Temperature – Backlit LCD Display – 0.01 Accuracy for Swimming Pools and Aquaculture - 01

~~£27.18~~

Free shipping

16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips (1/3)

16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips (2/3)

16-in-1 Drinking Water Test Kit: Professional Hardness Test Kits, Tap and Well Water Test Strips

~~£27.18~~

Free shipping

Water Quality Test Meter TDS PH EC Temperature 4 in 1 Set Digital Tester with LCD Display Test for Swimming Pool, Aquarium (1/5)

Water Quality Test Meter TDS PH EC Temperature 4 in 1 Set Digital Tester with LCD Display Test for Swimming Pool, Aquarium (2/5)

Water Quality Test Meter TDS PH EC Temperature 4 in 1 Set Digital Tester with LCD Display Test for Swimming Pool, Aquarium (3/5)

Water Quality Test Meter TDS PH EC Temperature 4 in 1 Set Digital Tester with LCD Display Test for Swimming Pool, Aquarium

50PCS 6-in-1 Swimming Pool Test Paper Residual Chlorine pH Value Alkalinity Hardness Test Strip Bronze Acid Exceptional (1/5)

50PCS 6-in-1 Swimming Pool Test Paper Residual Chlorine pH Value Alkalinity Hardness Test Strip Bronze Acid Exceptional (2/5)

50PCS 6-in-1 Swimming Pool Test Paper Residual Chlorine pH Value Alkalinity Hardness Test Strip Bronze Acid Exceptional (3/5)

50PCS 6-in-1 Swimming Pool Test Paper Residual Chlorine pH Value Alkalinity Hardness Test Strip Bronze Acid Exceptional

6 in 1 Pool Spa Hot Tub Test Strips, Swimming Pool Spa & Hot Tub Chemicals Water Test Strips for Rapid Measurement of Residual Chlorine ,Total Alkalinity,Hardness and pH Testing,100pcs (1/5)

6 in 1 Pool Spa Hot Tub Test Strips, Swimming Pool Spa & Hot Tub Chemicals Water Test Strips for Rapid Measurement of Residual Chlorine ,Total Alkalinity,Hardness and pH Testing,100pcs

Pool Test Strips, 7 in 1 Pool Test Strips, 100 Pack Water Quality Test Strips for Chlorine, Bromine, Nitrite, Nitrate, Hardness, Total Alkalinity, PH (1/5)

Pool Test Strips, 7 in 1 Pool Test Strips, 100 Pack Water Quality Test Strips for Chlorine, Bromine, Nitrite, Nitrate, Hardness, Total Alkalinity, PH (2/5)

Pool Test Strips, 7 in 1 Pool Test Strips, 100 Pack Water Quality Test Strips for Chlorine, Bromine, Nitrite, Nitrate, Hardness, Total Alkalinity, PH (3/5)

Pool Test Strips, 7 in 1 Pool Test Strips, 100 Pack Water Quality Test Strips for Chlorine, Bromine, Nitrite, Nitrate, Hardness, Total Alkalinity, PH

2-in-1 pH and Chlorine Tester – Pool Water Quality Analyzer – Accurate Measurement of pH and Chlorine Levels – Easy-to-Read LCD Screen (1/4)

2-in-1 pH and Chlorine Tester – Pool Water Quality Analyzer – Accurate Measurement of pH and Chlorine Levels – Easy-to-Read LCD Screen (2/4)

2-in-1 pH and Chlorine Tester – Pool Water Quality Analyzer – Accurate Measurement of pH and Chlorine Levels – Easy-to-Read LCD Screen (3/4)

2-in-1 pH and Chlorine Tester – Pool Water Quality Analyzer – Accurate Measurement of pH and Chlorine Levels – Easy-to-Read LCD Screen

~~£35.68~~

Free shipping

Water Quality Tester, PC-102B Electric Swimming Pool Tester CL2 Chlorine and PH Tester Swimming Pool Spa Water Quality Analyzer with Probe PH Test Kit (1/5)

Water Quality Tester, PC-102B Electric Swimming Pool Tester CL2 Chlorine and PH Tester Swimming Pool Spa Water Quality Analyzer with Probe PH Test Kit

in 1 Electronic PH Meter for Swimming Pools, PH/TDS/SALT/SG/ORP/EC/TEMP/H2 Tester, Water Quality Tester for Swimming Pool, Spa, Aquarium, Drinking Water, Hydroponics (1/5)

in 1 Electronic PH Meter for Swimming Pools, PH/TDS/SALT/SG/ORP/EC/TEMP/H2 Tester, Water Quality Tester for Swimming Pool, Spa, Aquarium, Drinking Water, Hydroponics

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