Swimming pool and hot tub maintenance

500+ products

pH Tester, Pool pH Tester Measures TDS pH EC Temperature Water Quality pH Tester for Drinking Water, Pool, Aquarium, Beverages, Hydroponics (1/5)

pH Tester, Pool pH Tester Measures TDS pH EC Temperature Water Quality pH Tester for Drinking Water, Pool, Aquarium, Beverages, Hydroponics (2/5)

pH Tester, Pool pH Tester Measures TDS pH EC Temperature Water Quality pH Tester for Drinking Water, Pool, Aquarium, Beverages, Hydroponics (3/5)

pH Tester, Pool pH Tester Measures TDS pH EC Temperature Water Quality pH Tester for Drinking Water, Pool, Aquarium, Beverages, Hydroponics (4/5)

pH Tester, Pool pH Tester Measures TDS pH EC Temperature Water Quality pH Tester for Drinking Water, Pool, Aquarium, Beverages, Hydroponics

~~£23.58~~

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– 500ml Portable Electric Kettle – 304 Stainless Steel – 4 Adjustable Temperatures 45/60/80/100°C – Auto Shut-off – Rapid Cup Heating (1/4)

– 500ml Portable Electric Kettle – 304 Stainless Steel – 4 Adjustable Temperatures 45/60/80/100°C – Auto Shut-off – Rapid Cup Heating (2/4)

– 500ml Portable Electric Kettle – 304 Stainless Steel – 4 Adjustable Temperatures 45/60/80/100°C – Auto Shut-off – Rapid Cup Heating

~~£52.99~~

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Chlorine Granules 1 kg - Chemical

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Chlorine Granules 2 kg

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Tester Kit - To Measure pH And Chlorine - Used In Swimming Pools And Spas (1/4)

Tester Kit - To Measure pH And Chlorine - Used In Swimming Pools And Spas (2/4)

Tester Kit - To Measure pH And Chlorine - Used In Swimming Pools And Spas

~~£37.20~~

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

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

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

in 1 Water Quality Tester Digital PH Chlorine CL2 Tester Portable with Large Screen for Swimming Pool Spa Water Quality Analyzer (4/5)

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

~~£33.58~~

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BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus (1/5)

BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus (2/5)

BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus (3/5)

BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus (4/5)

BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus (5/5)

#1 in sales

BLUE SPARKLE Chemical Starter Kit for Hot tub Spa Swimming Pool Water Cleaning Treatment Set for SPA (Includes Chlorine, pH Minus

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3-in-1 Blue Electrical Conductivity Meter, TDS-EC Measuring Pen for Water Quality Analysis with Backlight - (1/3)

3-in-1 Blue Electrical Conductivity Meter, TDS-EC Measuring Pen for Water Quality Analysis with Backlight -

~~£24.25~~

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Water tester - a highly accurate and reliable portable water quality analysis tool for testing drinking water or swimming pools (1/5)

Water tester - a highly accurate and reliable portable water quality analysis tool for testing drinking water or swimming pools (2/5)

Water tester - a highly accurate and reliable portable water quality analysis tool for testing drinking water or swimming pools (3/5)

Water tester - a highly accurate and reliable portable water quality analysis tool for testing drinking water or swimming pools

~~£38.99~~

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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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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

~~£31.98~~

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（18×3.7×3.7cm）Ph Meter, 5 in 1 PH/TDS/EC/Salinity/Thermometer, LCD Display PH Tester, Automatic Temperature Compensation, Electronic Pool PH Tester, Suitable for Drinking Water, Hydroponics, A (1/4)

（18×3.7×3.7cm）Ph Meter, 5 in 1 PH/TDS/EC/Salinity/Thermometer, LCD Display PH Tester, Automatic Temperature Compensation, Electronic Pool PH Tester, Suitable for Drinking Water, Hydroponics, A

~~£63.52~~

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Water Consumption Test Device, Green (1/2)

Water Consumption Test Device, Green

~~£55.58~~

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Testeur électronique de PH-mètre, 5 en 1 PH Testeur Thermomètre de poche Qualité de l'eau PH EC Sel TDS pour la maison, la piscine, l'eau d'aquarium (1/5)

Testeur électronique de PH-mètre, 5 en 1 PH Testeur Thermomètre de poche Qualité de l'eau PH EC Sel TDS pour la maison, la piscine, l'eau d'aquarium (2/5)

Testeur électronique de PH-mètre, 5 en 1 PH Testeur Thermomètre de poche Qualité de l'eau PH EC Sel TDS pour la maison, la piscine, l'eau d'aquarium (3/5)

Testeur électronique de PH-mètre, 5 en 1 PH Testeur Thermomètre de poche Qualité de l'eau PH EC Sel TDS pour la maison, la piscine, l'eau d'aquarium (4/5)

Testeur électronique de PH-mètre, 5 en 1 PH Testeur Thermomètre de poche Qualité de l'eau PH EC Sel TDS pour la maison, la piscine, l'eau d'aquarium

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Borosilicate Glass Electric Kettle with Blue LED Lighting, Clear Crystal, 2200W, 1.7L, Limescale Filter, Auto-Shut-Off, 360° Base, BPA-Free, White (1/4)

Borosilicate Glass Electric Kettle with Blue LED Lighting, Clear Crystal, 2200W, 1.7L, Limescale Filter, Auto-Shut-Off, 360° Base, BPA-Free, White (2/4)

Borosilicate Glass Electric Kettle with Blue LED Lighting, Clear Crystal, 2200W, 1.7L, Limescale Filter, Auto-Shut-Off, 360° Base, BPA-Free, White

~~£59.99~~

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PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (1/5)

PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (2/5)

PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (3/5)

PC102 Swimming Pool Water Quality Tester with Hot Spring and Residual Chlorine Detector for Aquarium (4/5)

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

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Digital TDS Water Quality Tester with Large LCD Screen for Home, Industrial, and Spa Use, 0-9999 ppm, Drinking Water Quality Monitor (Black) (1/4)

Digital TDS Water Quality Tester with Large LCD Screen for Home, Industrial, and Spa Use, 0-9999 ppm, Drinking Water Quality Monitor (Black) (2/4)

Digital TDS Water Quality Tester with Large LCD Screen for Home, Industrial, and Spa Use, 0-9999 ppm, Drinking Water Quality Monitor (Black) (3/4)

Digital TDS Water Quality Tester with Large LCD Screen for Home, Industrial, and Spa Use, 0-9999 ppm, Drinking Water Quality Monitor (Black)

~~£37.34~~

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Portable Digital PH Chlorine Tester Water Quality Tester Water Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Checker (1/5)

Portable Digital PH Chlorine Tester Water Quality Tester Water Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Checker (2/5)

Portable Digital PH Chlorine Tester Water Quality Tester Water Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Checker (3/5)

Portable Digital PH Chlorine Tester Water Quality Tester Water Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Checker (4/5)

Portable Digital PH Chlorine Tester Water Quality Tester Water Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Checker

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Water Quality Tester, Electric Pool Tester PC-102 CL2 Chlorine and PH Tester Analyzer (1/3)

Water Quality Tester, Electric Pool Tester PC-102 CL2 Chlorine and PH Tester Analyzer (2/3)

Water Quality Tester, Electric Pool Tester PC-102 CL2 Chlorine and PH Tester Analyzer

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~~

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PC101 pH & Cl2 Test 2 in 1 Electronic Digital SPA Tester Water Quality Detector Residual Chlorine Analysis Monitor (1/5)

PC101 pH & Cl2 Test 2 in 1 Electronic Digital SPA Tester Water Quality Detector Residual Chlorine Analysis Monitor (2/5)

PC101 pH & Cl2 Test 2 in 1 Electronic Digital SPA Tester Water Quality Detector Residual Chlorine Analysis Monitor (3/5)

PC101 pH & Cl2 Test 2 in 1 Electronic Digital SPA Tester Water Quality Detector Residual Chlorine Analysis Monitor

~~£40.99~~

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7-in-1 pH Chlorine Meter for Swimming Pools, pH, Chlorine, Salinity, ORP, TDS, EC, and Temperature Tester, High-Precision Water Quality Tester with ATC Function for Swimming Pools, Drinking Water, Aqu (1/4)

7-in-1 pH Chlorine Meter for Swimming Pools, pH, Chlorine, Salinity, ORP, TDS, EC, and Temperature Tester, High-Precision Water Quality Tester with ATC Function for Swimming Pools, Drinking Water, Aqu

51mm Bottomless Espresso Filter Holder, compatible with DeLonghi Dedica and Smeg coffee machines, stainless steel (1/4)

51mm Bottomless Espresso Filter Holder, compatible with DeLonghi Dedica and Smeg coffee machines, stainless steel (2/4)

51mm Bottomless Espresso Filter Holder, compatible with DeLonghi Dedica and Smeg coffee machines, stainless steel

~~£44.99~~

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3-in-1 Tester: TDS, pH, and Swimming Pool Water Quality Testing Conductivity Meter with LCD Screen High Accuracy and Automatic Calibration Function (1/4)

3-in-1 Tester: TDS, pH, and Swimming Pool Water Quality Testing Conductivity Meter with LCD Screen High Accuracy and Automatic Calibration Function

~~£37.83~~

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6 in 1 Swimming Pool Strips Bromine Spa, Swimming Pool Ph Test Strips Water Quality Test for Chlorine Bromine Alkalinity Cyanuric Acid Liquid Hardness General Tester (100pcs) (1/5)

6 in 1 Swimming Pool Strips Bromine Spa, Swimming Pool Ph Test Strips Water Quality Test for Chlorine Bromine Alkalinity Cyanuric Acid Liquid Hardness General Tester (100pcs)

~~£16.18~~

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5 in 1 pH Meter with Salinity Temperature TDS EC High Accuracy Multifunctional Waterproof Tester Automatic Temperature Compensation Self-Calibration Digital Ph Tester (1/5)

5 in 1 pH Meter with Salinity Temperature TDS EC High Accuracy Multifunctional Waterproof Tester Automatic Temperature Compensation Self-Calibration Digital Ph Tester

~~£40.48~~

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Dellonda DL28 Hot Tubs/Spa Chemical Floater (1/3)

Dellonda DL28 Hot Tubs/Spa Chemical Floater (2/3)

Dellonda DL28 Hot Tubs/Spa Chemical Floater

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Chlorine Tablets 5kg (20g Each)

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Pool ionizer – Solar-powered pool ionizer, cleaning tools for pool cleaners, cleaning equipment for spa fountains FLITI (1/4)

Pool ionizer – Solar-powered pool ionizer, cleaning tools for pool cleaners, cleaning equipment for spa fountains FLITI (2/4)

Pool ionizer – Solar-powered pool ionizer, cleaning tools for pool cleaners, cleaning equipment for spa fountains FLITI (3/4)

#1 in sales

Pool ionizer – Solar-powered pool ionizer, cleaning tools for pool cleaners, cleaning equipment for spa fountains FLITI

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

~~£26.60~~

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Tuya WiFi Six-in-One Water Quality Tester, pH/TDS/EC/SG/Salinity/Temperature Smart Water Quality Monitoring, 220-240V (1/5)

Tuya WiFi Six-in-One Water Quality Tester, pH/TDS/EC/SG/Salinity/Temperature Smart Water Quality Monitoring, 220-240V (2/5)

Tuya WiFi Six-in-One Water Quality Tester, pH/TDS/EC/SG/Salinity/Temperature Smart Water Quality Monitoring, 220-240V (3/5)

Tuya WiFi Six-in-One Water Quality Tester, pH/TDS/EC/SG/Salinity/Temperature Smart Water Quality Monitoring, 220-240V

~~£123.99~~

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Chlorine Tablets (4 in 1) 2kg (20g Each) (1/5)

Chlorine Tablets (4 in 1) 2kg (20g Each) (2/5)

Chlorine Tablets (4 in 1) 2kg (20g Each) (3/5)

Chlorine Tablets (4 in 1) 2kg (20g Each) (4/5)

Chlorine Tablets (4 in 1) 2kg (20g Each)

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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

~~£50.65~~

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Hayward CL200 Automatic Chlorine Tablet Dosing System for Pools and Hot Tubs – Automatic Long-Lasting Chlorine Tablet Dispenser--BIEMMEDUE (1/4)

Hayward CL200 Automatic Chlorine Tablet Dosing System for Pools and Hot Tubs – Automatic Long-Lasting Chlorine Tablet Dispenser--BIEMMEDUE (2/4)

Hayward CL200 Automatic Chlorine Tablet Dosing System for Pools and Hot Tubs – Automatic Long-Lasting Chlorine Tablet Dispenser--BIEMMEDUE

~~£80.02~~

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Multifunctional Digital TDS Tester Meter,Professional Water Quality Tester Purity Tester 0-9990ppm Measuring Range Meter with LCD Display for Tap Water Water Aquariums (1/5)

Multifunctional Digital TDS Tester Meter,Professional Water Quality Tester Purity Tester 0-9990ppm Measuring Range Meter with LCD Display for Tap Water Water Aquariums

~~£16.99~~

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Solar Pool Ion Generator, Automatic Copper and Silver Ion Purifier, Pool Cleaner (White) (1/5)

Solar Pool Ion Generator, Automatic Copper and Silver Ion Purifier, Pool Cleaner (White) (2/5)

Solar Pool Ion Generator, Automatic Copper and Silver Ion Purifier, Pool Cleaner (White) (3/5)

Solar Pool Ion Generator, Automatic Copper and Silver Ion Purifier, Pool Cleaner (White) (4/5)

Solar Pool Ion Generator, Automatic Copper and Silver Ion Purifier, Pool Cleaner (White)

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Spare parts for Pentair 320/322 automatic chlorinators: Dosing tube fittings R172272 R172091 R171097 (1/5)

Spare parts for Pentair 320/322 automatic chlorinators: Dosing tube fittings R172272 R172091 R171097 (2/5)

Spare parts for Pentair 320/322 automatic chlorinators: Dosing tube fittings R172272 R172091 R171097 (3/5)

Spare parts for Pentair 320/322 automatic chlorinators: Dosing tube fittings R172272 R172091 R171097

~~£31.87~~

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Electronic pH Meter Tester, Measuring Range from 0 to 14 pH, High-Precision Swimming Pool pH Tester, pH Meter for Swimming Pools, Aquariums, and Drinking Water (1/5)

Electronic pH Meter Tester, Measuring Range from 0 to 14 pH, High-Precision Swimming Pool pH Tester, pH Meter for Swimming Pools, Aquariums, and Drinking Water

~~£16.18~~

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3-in-1 Tester: TDS, pH, and Swimming Pool Water Quality Testing Conductivity Meter with LCD Screen High Accuracy and Automatic Calibration Function

~~£16.18~~

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Pool Ionizer - Solar Powered Pool Ionizer Pool Purifier Cleaning Tools, Pool Cleaner Spa Fountain Cleaning Equipment MUMU (1/4)

Pool Ionizer - Solar Powered Pool Ionizer Pool Purifier Cleaning Tools, Pool Cleaner Spa Fountain Cleaning Equipment MUMU (2/4)

Pool Ionizer - Solar Powered Pool Ionizer Pool Purifier Cleaning Tools, Pool Cleaner Spa Fountain Cleaning Equipment MUMU (3/4)

Pool Ionizer - Solar Powered Pool Ionizer Pool Purifier Cleaning Tools, Pool Cleaner Spa Fountain Cleaning Equipment MUMU

~~£60.64~~

TDS-3 Drinking Water Meter LCD Digital Portable Water Quality Meter Tester Pen Temperature and PPM Water Purity Tester 0-9990 PPM Drinking Water Hydroponics (Does Not Test P (1/5)

TDS-3 Drinking Water Meter LCD Digital Portable Water Quality Meter Tester Pen Temperature and PPM Water Purity Tester 0-9990 PPM Drinking Water Hydroponics (Does Not Test P

~~£11.32~~

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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 Growing (Does (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 Growing (Does

~~£14.56~~

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3 in 1 Digital Multifunctional Tester TDS EC and Temperature Meter with Large Digital LCD Display Monitor Drinking Water Quality, Hydroponics and More(Cannot Test pH) (1/5)

3 in 1 Digital Multifunctional Tester TDS EC and Temperature Meter with Large Digital LCD Display Monitor Drinking Water Quality, Hydroponics and More(Cannot Test pH)

~~£14.56~~

Free shipping

~~£12.94~~

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Slow-release tablets for small multi-purpose pools, water quality care, clearing, suitable for hot tubs and small swimming pools -- 100g -- BIEMMEDUE (1/5)

Slow-release tablets for small multi-purpose pools, water quality care, clearing, suitable for hot tubs and small swimming pools -- 100g -- BIEMMEDUE (2/5)

Slow-release tablets for small multi-purpose pools, water quality care, clearing, suitable for hot tubs and small swimming pools -- 100g -- BIEMMEDUE (3/5)

Slow-release tablets for small multi-purpose pools, water quality care, clearing, suitable for hot tubs and small swimming pools -- 100g -- BIEMMEDUE

~~£36.10~~

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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~~

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2-Pack Water Quality Tester, Electronic pH Tester, TDS and EC Temperature Meter, 4-in-1 Water Quality Tester with LCD Display, High Precision Resolution 0.01, for Pool, Drinking Water (1/5)

2-Pack Water Quality Tester, Electronic pH Tester, TDS and EC Temperature Meter, 4-in-1 Water Quality Tester with LCD Display, High Precision Resolution 0.01, for Pool, Drinking Water

~~£22.57~~

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