Swimming pool and hot tub maintenance

Swimming pool float dispenser - Chemical dispenser for chlorine or bromine tablets - for the dosed dispensing of swimming pool additives (1/5)

Swimming pool float dispenser - Chemical dispenser for chlorine or bromine tablets - for the dosed dispensing of swimming pool additives (2/5)

Swimming pool float dispenser - Chemical dispenser for chlorine or bromine tablets - for the dosed dispensing of swimming pool additives (3/5)

Swimming pool float dispenser - Chemical dispenser for chlorine or bromine tablets - for the dosed dispensing of swimming pool additives

16 in 1 Drinking Water Test Kit Professional Hardness Test Kits, Tap and Well Water Test Strips (1/4)

16 in 1 Drinking Water Test Kit Professional Hardness Test Kits, Tap and Well Water Test Strips (2/4)

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

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

Digital LCD Water Quality Tester Meter, Professional Measuring Pen for Water Hardness and Mineral Impurity Content (1/5)

Digital LCD Water Quality Tester Meter, Professional Measuring Pen for Water Hardness and Mineral Impurity Content (2/5)

Digital LCD Water Quality Tester Meter, Professional Measuring Pen for Water Hardness and Mineral Impurity Content (3/5)

Digital LCD Water Quality Tester Meter, Professional Measuring Pen for Water Hardness and Mineral Impurity Content

~~£43.82~~

– TDS – Water Quality Meter TDS Water Quality Detector (1/5)

– TDS – Water Quality Meter TDS Water Quality Detector (2/5)

– TDS – Water Quality Meter TDS Water Quality Detector (3/5)

– TDS – Water Quality Meter TDS Water Quality Detector

~~£43.86~~

PH Meter, TDS Meter 8-in-1 PH Tester EC Meter Salt Tester High Precision, for L/Swimming Pool (8-in-1 PH Meter) (1/5)

PH Meter, TDS Meter 8-in-1 PH Tester EC Meter Salt Tester High Precision, for L/Swimming Pool (8-in-1 PH Meter) (2/5)

PH Meter, TDS Meter 8-in-1 PH Tester EC Meter Salt Tester High Precision, for L/Swimming Pool (8-in-1 PH Meter) (3/5)

PH Meter, TDS Meter 8-in-1 PH Tester EC Meter Salt Tester High Precision, for L/Swimming Pool (8-in-1 PH Meter)

Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test (1/4)

Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test (2/4)

Swimming pool water tester pH and chlorine content, electronic 13 cm cable, spa chlorine test

Ulisem Test Paper Tool Kit, Pool Testing, Water Quality Testing, Pool Test Strips, Water Quality Test Paper for Chlorine and pH (1/4)

Ulisem Test Paper Tool Kit, Pool Testing, Water Quality Testing, Pool Test Strips, Water Quality Test Paper for Chlorine and pH (2/4)

Ulisem Test Paper Tool Kit, Pool Testing, Water Quality Testing, Pool Test Strips, Water Quality Test Paper for Chlorine and pH

~~£44.19~~

Pack of 50 6-in-1 pool water quality test strips for chlorine, pH, alkalinity, hardness, acidity, bromine, cyanuric acid (1/4)

Pack of 50 6-in-1 pool water quality test strips for chlorine, pH, alkalinity, hardness, acidity, bromine, cyanuric acid (2/4)

Pack of 50 6-in-1 pool water quality test strips for chlorine, pH, alkalinity, hardness, acidity, bromine, cyanuric acid

~~£44.19~~

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

8-in-1 Electronic Pool pH Meter, PH/TDS/SALT/SG/ORP/EC/TEMP/H2 Tester, Water Quality Tester for Pool, Spa, Aquarium, Drinking Water, Hydroponics (2/5)

8-in-1 Electronic Pool pH Meter, PH/TDS/SALT/SG/ORP/EC/TEMP/H2 Tester, Water Quality Tester for Pool, Spa, Aquarium, Drinking Water, Hydroponics (3/5)

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

Lay-Z-Spa P05345 P03821 Hot Tub Chemical Dispenser for Indoor and Outdoor Use, Pool, Spa, Water Testing Accessories (1/5)

Lay-Z-Spa P05345 P03821 Hot Tub Chemical Dispenser for Indoor and Outdoor Use, Pool, Spa, Water Testing Accessories (2/5)

Lay-Z-Spa P05345 P03821 Hot Tub Chemical Dispenser for Indoor and Outdoor Use, Pool, Spa, Water Testing Accessories (3/5)

Lay-Z-Spa P05345 P03821 Hot Tub Chemical Dispenser for Indoor and Outdoor Use, Pool, Spa, Water Testing Accessories

~~£44.61~~

100 Pcs pH Test Strips for Swimming Pools, Pool Test Strips, Water Hardness Test for Free Chlorine, Total Alkalinity and pH, Spa Hot Tub Test, Cyanuric Acid Test (3 in 1) (1/5)

100 Pcs pH Test Strips for Swimming Pools, Pool Test Strips, Water Hardness Test for Free Chlorine, Total Alkalinity and pH, Spa Hot Tub Test, Cyanuric Acid Test (3 in 1)

~~£45.02~~

Ulisem 50Pcs 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 Hardness Analys (1/5)

Ulisem 50Pcs 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 Hardness Analys

~~£45.08~~

16-in-1 Drinking Water Test Kit – Test Strips for pH, Lead, Mercury, Iron – Easy to Use with Dropper – For Swimming Pools and Drinking Water (1/4)

16-in-1 Drinking Water Test Kit – Test Strips for pH, Lead, Mercury, Iron – Easy to Use with Dropper – For Swimming Pools and Drinking Water (2/4)

16-in-1 Drinking Water Test Kit – Test Strips for pH, Lead, Mercury, Iron – Easy to Use with Dropper – For Swimming Pools and Drinking Water (3/4)

16-in-1 Drinking Water Test Kit – Test Strips for pH, Lead, Mercury, Iron – Easy to Use with Dropper – For Swimming Pools and Drinking Water

~~£36.78~~

Free shipping

Ulisem Water Quality Tester, 4-in-1 pH Meter and TDS&EC Temperature Meter, Meter with LCD Screen, High Precision 0.01 Resolution, for Drinking Water, Swimming Pools, Aquariums, Hydroponics (cannot (1/4)

Ulisem Water Quality Tester, 4-in-1 pH Meter and TDS&EC Temperature Meter, Meter with LCD Screen, High Precision 0.01 Resolution, for Drinking Water, Swimming Pools, Aquariums, Hydroponics (cannot

~~£45.73~~

5-in-1 Pool Test Strips, 50 Pieces, Water Quality, pH, Cl, Total Alkali-Free Chlorine Strips (1/5)

5-in-1 Pool Test Strips, 50 Pieces, Water Quality, pH, Cl, Total Alkali-Free Chlorine Strips (2/5)

5-in-1 Pool Test Strips, 50 Pieces, Water Quality, pH, Cl, Total Alkali-Free Chlorine Strips (3/5)

5-in-1 Pool Test Strips, 50 Pieces, Water Quality, pH, Cl, Total Alkali-Free Chlorine Strips

~~£45.73~~

Portable Digital LCD TDS-3 Drinking Water Meter, Water Quality Tester Pen with Temperature and PPM Measurement, Water Purity Tester 0-9990 PPM, Suitable for Drinking Water and Hydroponic Cultivation ( (1/5)

Portable Digital LCD TDS-3 Drinking Water Meter, Water Quality Tester Pen with Temperature and PPM Measurement, Water Purity Tester 0-9990 PPM, Suitable for Drinking Water and Hydroponic Cultivation (

~~£45.79~~

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

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

LCD TDS-3 Meter for Drinking Water Quality, Digital Tester, Temperature PPM Test Pen Analyzer for Measuring Drinking Water, Hydroponics, Aquariums, Swimming Pools, and Spas (1/5)

LCD TDS-3 Meter for Drinking Water Quality, Digital Tester, Temperature PPM Test Pen Analyzer for Measuring Drinking Water, Hydroponics, Aquariums, Swimming Pools, and Spas

~~£45.96~~

LCD digital water quality tester pen, purity filter, TDS tester, 0-9999 ppm, white (1/5)

LCD digital water quality tester pen, purity filter, TDS tester, 0-9999 ppm, white (2/5)

LCD digital water quality tester pen, purity filter, TDS tester, 0-9999 ppm, white (3/5)

LCD digital water quality tester pen, purity filter, TDS tester, 0-9999 ppm, white

~~£46.05~~

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis (1/5)

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis (2/5)

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis (3/5)

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis

~~£46.26~~

Digital TDS-3 Water Quality Tester, Measures PPM 0-9990, LCD Display, Temperature 0-50°C, For Aquariums and Hydroponics (1/5)

Digital TDS-3 Water Quality Tester, Measures PPM 0-9990, LCD Display, Temperature 0-50°C, For Aquariums and Hydroponics (2/5)

Digital TDS-3 Water Quality Tester, Measures PPM 0-9990, LCD Display, Temperature 0-50°C, For Aquariums and Hydroponics (3/5)

Digital TDS-3 Water Quality Tester, Measures PPM 0-9990, LCD Display, Temperature 0-50°C, For Aquariums and Hydroponics

~~£46.31~~

in 1 Water Quality Tester Portable Digital PH Chlorine CL2 Tester with Large Screen for Pool and Spa Water Quality Analyzer (1/5)

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

in 1 Water Quality Tester Portable Digital PH Chlorine CL2 Tester with Large Screen for Pool and Spa Water Quality Analyzer (3/5)

in 1 Water Quality Tester Portable Digital PH Chlorine CL2 Tester with Large Screen for Pool and Spa Water Quality Analyzer

~~£46.48~~

pH test strips for water analysis, test strips for pool/spa water, test strips for a perfect measurement of your water quality (1/5)

pH test strips for water analysis, test strips for pool/spa water, test strips for a perfect measurement of your water quality (2/5)

pH test strips for water analysis, test strips for pool/spa water, test strips for a perfect measurement of your water quality (3/5)

pH test strips for water analysis, test strips for pool/spa water, test strips for a perfect measurement of your water quality

~~£46.56~~

6-in-1 pool and spa test strips, 100 strips for testing chlorine, bromine, pH, alkalinity, cyanuric acid and hardness (1/5)

6-in-1 pool and spa test strips, 100 strips for testing chlorine, bromine, pH, alkalinity, cyanuric acid and hardness (2/5)

6-in-1 pool and spa test strips, 100 strips for testing chlorine, bromine, pH, alkalinity, cyanuric acid and hardness (3/5)

6-in-1 pool and spa test strips, 100 strips for testing chlorine, bromine, pH, alkalinity, cyanuric acid and hardness

~~£46.76~~

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds (1/5)

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds (2/5)

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds (3/5)

Ulisem Digital Salinity Tester for Saltwater Pools and Ponds

~~£47.03~~

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

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

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

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

Ulisem 50-Piece Pool Test Strips, 14-in-1 Drinking Water Tester, Drinking Water Quality Analysis, Water Tester for Swimming Pool and Spa Water (1/4)

Ulisem 50-Piece Pool Test Strips, 14-in-1 Drinking Water Tester, Drinking Water Quality Analysis, Water Tester for Swimming Pool and Spa Water (2/4)

Ulisem 50-Piece Pool Test Strips, 14-in-1 Drinking Water Tester, Drinking Water Quality Analysis, Water Tester for Swimming Pool and Spa Water

~~£47.34~~

Two sets for Hayward Clx220ga Cl220 off-line chemical feeder connection kit with saddle clamp (1/5)

Two sets for Hayward Clx220ga Cl220 off-line chemical feeder connection kit with saddle clamp (2/5)

Two sets for Hayward Clx220ga Cl220 off-line chemical feeder connection kit with saddle clamp (3/5)

Two sets for Hayward Clx220ga Cl220 off-line chemical feeder connection kit with saddle clamp

~~£47.51~~

The TDS digital water quality analyzer detects the impurity content of water and is suitable for drinking water, swimming pools, aquariums, and hydroponics. (1/5)

The TDS digital water quality analyzer detects the impurity content of water and is suitable for drinking water, swimming pools, aquariums, and hydroponics.

~~£47.59~~

The TDS digital water quality analyzer detects the impurity content of water and is suitable for drinking water, swimming pools, aquariums, and hydroponics.

~~£47.59~~

Pack of 50 Test Strips, 6 in 1 Spa and Pool Test Strips, Water Test Strips for Testing Free Chlorine, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid and pH (1/5)

Pack of 50 Test Strips, 6 in 1 Spa and Pool Test Strips, Water Test Strips for Testing Free Chlorine, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid and pH

~~£47.81~~

Water Quality Tester Electrolyzer - Portable Water Impurity Monitor - Water Test Meter - Electrolyzer Machine - TRIMEC (1/5)

Water Quality Tester Electrolyzer - Portable Water Impurity Monitor - Water Test Meter - Electrolyzer Machine - TRIMEC (2/5)

Water Quality Tester Electrolyzer - Portable Water Impurity Monitor - Water Test Meter - Electrolyzer Machine - TRIMEC (3/5)

Water Quality Tester Electrolyzer - Portable Water Impurity Monitor - Water Test Meter - Electrolyzer Machine - TRIMEC

~~£47.89~~

Water Quality Tester, 2-in-1 Digital pH Tester, Chlorine/Cl2 Meter, Portable Water Quality Control Controller with Large Screen for Swimming Pool Spa (Grey White) (1/5)

Water Quality Tester, 2-in-1 Digital pH Tester, Chlorine/Cl2 Meter, Portable Water Quality Control Controller with Large Screen for Swimming Pool Spa (Grey White)

~~£47.92~~

16-in-1 Water Test Strips (100 units) – Analyzes pH, Nitrites, Chlorine, Hardness, Mercury & Lead in Drinking Water, Swimming Pools, and Aquariums (1/5)

16-in-1 Water Test Strips (100 units) – Analyzes pH, Nitrites, Chlorine, Hardness, Mercury & Lead in Drinking Water, Swimming Pools, and Aquariums (2/5)

16-in-1 Water Test Strips (100 units) – Analyzes pH, Nitrites, Chlorine, Hardness, Mercury & Lead in Drinking Water, Swimming Pools, and Aquariums (3/5)

16-in-1 Water Test Strips (100 units) – Analyzes pH, Nitrites, Chlorine, Hardness, Mercury & Lead in Drinking Water, Swimming Pools, and Aquariums

~~£47.98~~

Drinking Water Test Kit - Rapid Coliform Detection for Wells, Swimming Pools and Aquariums (1/5)

Drinking Water Test Kit - Rapid Coliform Detection for Wells, Swimming Pools and Aquariums (2/5)

Drinking Water Test Kit - Rapid Coliform Detection for Wells, Swimming Pools and Aquariums (3/5)

Drinking Water Test Kit - Rapid Coliform Detection for Wells, Swimming Pools and Aquariums

~~£48.08~~

Water quality tester, 4-in-1 pH meter, TDS and EC thermometer with LCD screen, high precision (0.01 resolution), for drinking water, swimming pools, aquariums, hydroponics (cannot test (1/4)

Water quality tester, 4-in-1 pH meter, TDS and EC thermometer with LCD screen, high precision (0.01 resolution), for drinking water, swimming pools, aquariums, hydroponics (cannot test

~~£48.11~~

Ahlsen – TDS Water Quality Tester – Iron and Aluminum Electrodes – Fast Testing for Drinking Water, Aquariums, and Swimming Pools – Lightweight and Durable (1/5)

Ahlsen – TDS Water Quality Tester – Iron and Aluminum Electrodes – Fast Testing for Drinking Water, Aquariums, and Swimming Pools – Lightweight and Durable

~~£48.19~~

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis

~~£48.38~~

Test kit - For measuring pH and chlorine - For use in swimming pools and spas - Pool water analysis

~~£48.38~~

Effervescent chlorine tablets for swimming pools, suitable for water quality cleaning and algaecide in swimming pools and children's pools (100 tablets) (1/5)

Effervescent chlorine tablets for swimming pools, suitable for water quality cleaning and algaecide in swimming pools and children's pools (100 tablets)

~~£48.49~~

Pool Chlorine Diffuser with Thermometer, Automatic Floating Dispenser, 5 Inch Pool Chlorine Doser, Chemical Dispenser for Swimming Pool, Pond, Spa (1/5)

Pool Chlorine Diffuser with Thermometer, Automatic Floating Dispenser, 5 Inch Pool Chlorine Doser, Chemical Dispenser for Swimming Pool, Pond, Spa

Water quality tester - TDS/EC/thermometer (Celsius, Fahrenheit), suitable for drinking water, tap water and swimming pool water. (1/5)

Water quality tester - TDS/EC/thermometer (Celsius, Fahrenheit), suitable for drinking water, tap water and swimming pool water. (2/5)

Water quality tester - TDS/EC/thermometer (Celsius, Fahrenheit), suitable for drinking water, tap water and swimming pool water. (3/5)

Water quality tester - TDS/EC/thermometer (Celsius, Fahrenheit), suitable for drinking water, tap water and swimming pool water. (4/5)

Water quality tester - TDS/EC/thermometer (Celsius, Fahrenheit), suitable for drinking water, tap water and swimming pool water.

Free shipping

7-in-1 Pool and Spa Water Tester, 100 Pool Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine (1/5)

7-in-1 Pool and Spa Water Tester, 100 Pool Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine (2/5)

7-in-1 Pool and Spa Water Tester, 100 Pool Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine (3/5)

7-in-1 Pool and Spa Water Tester, 100 Pool Test Strips, Chlorine and pH Test, Bromine, Total Hardness, Total Alkalinity, Cyanuric Acid, Total Chlorine

~~£48.83~~