Testers

7 in 1 Hot Tub Test Strips, pool test strips for Water Hardness Chlorine Bromine pH Total Alkalinity and Cyanuric Acid All In 1 Testing Strip for Pool, SPA, Hot Tub & More (100pcs)

Generic

✓

Testers

7 in 1 Hot Tub Test Strips, pool test strips for Water Hardness Chlorine Bromine pH Total Alkalinity and Cyanuric Acid All In 1 Testing Strip for Pool, SPA, Hot Tub & More (100pcs)

★★★★★4.8

$23.99

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7 In 1 Smart Pool Water Tester for Hot Tubs Wireless Bluetooth WiFi Real Time Monitoring PH ORP EC TDS Salt Temperature Chlorine Analysis Solar Powered Floating Design

Generic

✓

Testers

7 In 1 Smart Pool Water Tester for Hot Tubs Wireless Bluetooth WiFi Real Time Monitoring PH ORP EC TDS Salt Temperature Chlorine Analysis Solar Powered Floating Design

$603.99

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7 in 1 Water Testing Kit, 150Pcs Hot Tub Test Strips for Spa and Swimming Pool, Accurate Test for pH, Free Chlorine, Bromine, Total Alkalinity, Hardness and Cyanuric Acid

MeFay

✓

Testers

7 in 1 Water Testing Kit, 150Pcs Hot Tub Test Strips for Spa and Swimming Pool, Accurate Test for pH, Free Chlorine, Bromine, Total Alkalinity, Hardness and Cyanuric Acid

$27.99

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Digital Water Tester, TDS EC Meter, 4 in 1 Tester with Backlit ±2% Accuracy Portable Water Meter Pen for Drinking Water Aquarium Hydroponics Pool Conductivity Temperature Display Auto Hold Function

Cfanibo

✓

Testers

Digital Water Tester, TDS EC Meter, 4 in 1 Tester with Backlit ±2% Accuracy Portable Water Meter Pen for Drinking Water Aquarium Hydroponics Pool Conductivity Temperature Display Auto Hold Function

$21.99

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5 in 1 Hot Tub Test Strips, 50 Strips Easy Accurate Water Tester, Test for pH, Alkalinity, Free Chlorine(Bromine), Total Chlorine &Hardness for Water Pool & Hot Tub & Spa & Swimming Pools

Mosconly

✓

Testers

5 in 1 Hot Tub Test Strips, 50 Strips Easy Accurate Water Tester, Test for pH, Alkalinity, Free Chlorine(Bromine), Total Chlorine &Hardness for Water Pool & Hot Tub & Spa & Swimming Pools

★★★★★4.2

$15.99

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Dioche

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Testers

Dioche Kit Pool Test PH Testing Kit for Pool Water Quality | Essential Test - Simple Operation - Includes Storage Box - Ideal & PH Ranges for Safe Swimming

$24.99

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4-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

XURISON

✓

Testers

4-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

$26.99

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3-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

XURISON

✓

Testers

3-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

$26.99

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TDS Meter Digital Water Tester for Drinking Water, 4 in 1 TDS Water Quality Tester, Portable 0-9990ppm TDS EC & Temp(°C,°F) Meter Tester, Testing for Drinking Water, RO/DI System

ARCHER LIFE HALL

✓

Testers

TDS Meter Digital Water Tester for Drinking Water, 4 in 1 TDS Water Quality Tester, Portable 0-9990ppm TDS EC & Temp(°C,°F) Meter Tester, Testing for Drinking Water, RO/DI System

★★★★★5

$23.99

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TDS Meter Digital Water Tester, 3-in-1 TDS EC & Temperature Meter, Portable 0-9990 ppm Water Quality Tester for Drinking Water, RO/DI System, Aquariums, Hydroponics, Pools, Tap Water Testing

Dewbeat

✓

Testers

TDS Meter Digital Water Tester, 3-in-1 TDS EC & Temperature Meter, Portable 0-9990 ppm Water Quality Tester for Drinking Water, RO/DI System, Aquariums, Hydroponics, Pools, Tap Water Testing

★★★★★5

$19.99

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Pinafresa

✓

Testers

Pinafresa Water Quality Purity Detector 4in1 PH ORP H2 Temperature Hydrogen-Rich Meter Portable Pen for Aquarium Pool Pond Hydroponics

$51.99

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DR. DEUTSCH

✓

Testers

Dr.Deutsch Hot Tub Test Strips 150 Count, 3-in-1 Pool & Spa Water Test Kit for pH, Total Alkalinity, Free Chlorine & Bromine, Accurate Pool Test Strips for Swimming Pool & Spa, CE, FDA & UKCA

★★★★★4.6

$32.99

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1 Pcs Hot Tub Test Strips, Pool and Spa Test for pH, Accurate 3 In 1 Pool Water Testing Kit, Ph Chlorine Alkaline Hardness Testing Strip, Clearwater Strip Quality Tester Paper, Free Chlorine and Bromi

XinJiHongQiong

✓

Testers

1 Pcs Hot Tub Test Strips, Pool and Spa Test for pH, Accurate 3 In 1 Pool Water Testing Kit, Ph Chlorine Alkaline Hardness Testing Strip, Clearwater Strip Quality Tester Paper, Free Chlorine and Bromi

$20.99

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Szjinbao

✓

Testers

Szjinbao 7-Way Pool Test Strips, 50 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine

$23.99

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Hydro Haus

✓

Testers

Hydro Haus XL 200 Hot Tub & Pool Test Strips – 3-in-1 Water Testing Kit for Chlorine, Bromine & pH – Spa & Swimming Pool Chemical Test Strips – Extra Large 200 Pack

★★★★★5

$26.99

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NATFORTREE

✓

Testers

NATFORTREE 4 in 1 TDS EC Temp Meter, smiley and frowny Digital Water Tester

★★★★★4.1

$42.99

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100 Pack 5 in 1 Hot Tub Testing Strips, Water Quality Test Strips for Swimming Pool and Spa Water Testing Accurate pH Chlorine Bromine Total Alkalinity Detection Dip Water Quality Tester Easy Use

Cfanibo

✓

Testers

100 Pack 5 in 1 Hot Tub Testing Strips, Water Quality Test Strips for Swimming Pool and Spa Water Testing Accurate pH Chlorine Bromine Total Alkalinity Detection Dip Water Quality Tester Easy Use

★★★★★5

$22.99

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2026 NEW 4-in-1 TDS Meter Digital Water Tester，Portable Water Quality Tester TDS/EC/Temperature (℃/℉) Meter 0-9999ppm,Range±2% Accuracy Testing for Drinking Water, RO/DI System Aquariums Hydroponics

Fogbush

✓

Testers

2026 NEW 4-in-1 TDS Meter Digital Water Tester，Portable Water Quality Tester TDS/EC/Temperature (℃/℉) Meter 0-9999ppm,Range±2% Accuracy Testing for Drinking Water, RO/DI System Aquariums Hydroponics

★★★★★3.5

$22.99

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Viva Test

✓

Testers

VivaTest Hot Tub Test Strips and Pool Test Strips, 100 Pack 3-in-1 Water Testing Kit for Free Chlorine, pH and Total Alkalinity, Swimming Pools and Spas

★★★★★4.8

$20.99

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5 in 1 Hot Tub Test Strips, 50 Counts Water Test Strips Quickly Detect pH, Total Alkalinity, Total Hardness, Free Chlorine and Bromine, for Pool and Spa, Aquarium & Drinking Water Testing

Erigathe

✓

Testers

5 in 1 Hot Tub Test Strips, 50 Counts Water Test Strips Quickly Detect pH, Total Alkalinity, Total Hardness, Free Chlorine and Bromine, for Pool and Spa, Aquarium & Drinking Water Testing

★★★★★5

$18.99

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Ueomul

✓

Testers

Ueomul pH Chlorine Meter 7 IN 1, Tester pH Chlorine (FAC) TDS EC SALT ORP & Temperature with ATC, IP67 Waterproof, 0.01pH High Precision Water Quality Tester for Pool & Spa, Drinking Water, Hydroponic

★★★★★4.1

$154.99

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KIMIBST

✓

Testers

KIMIBST Pool Test Strips: 200CT 7-Way Professional Hot Tub & Spa Test Kit for Bromine pH Total Chlorine & Hardness Cyanuric Acid and More Accurate Testing Swimming Pool Water

★★★★★4.4

$38.99

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Digital TDS Water Meter - 0-9990 ppm Water Quality Tester for Drinking Water, Aquariums,Farming, Pools | RO-RODI Systems

Netupett

✓

Testers

Digital TDS Water Meter - 0-9990 ppm Water Quality Tester for Drinking Water, Aquariums,Farming, Pools | RO-RODI Systems

★★★★★4.2

$21.99

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New 9-in-1 Smart Water Tester, Digital Water Tester for TDS, Turbidity, EC, Temp, Salt, GH, TOC, COD, UV275, Water Quality Tester Real-Time APP Monitoring, Testing for Drinking Water, Tap, Outdoor

RYAKKA

✓

Testers

New 9-in-1 Smart Water Tester, Digital Water Tester for TDS, Turbidity, EC, Temp, Salt, GH, TOC, COD, UV275, Water Quality Tester Real-Time APP Monitoring, Testing for Drinking Water, Tap, Outdoor

★★★★★3.5

$257.99

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Featured products

7 in 1 Hot Tub Test Strips, pool test strips for Water Hardness Chlorine Bromine pH Total Alkalinity and Cyanuric Acid All In 1 Testing Strip for Pool, SPA, Hot Tub & More (100pcs)

7 In 1 Smart Pool Water Tester for Hot Tubs Wireless Bluetooth WiFi Real Time Monitoring PH ORP EC TDS Salt Temperature Chlorine Analysis Solar Powered Floating Design

7 in 1 Water Testing Kit, 150Pcs Hot Tub Test Strips for Spa and Swimming Pool, Accurate Test for pH, Free Chlorine, Bromine, Total Alkalinity, Hardness and Cyanuric Acid

Digital Water Tester, TDS EC Meter, 4 in 1 Tester with Backlit ±2% Accuracy Portable Water Meter Pen for Drinking Water Aquarium Hydroponics Pool Conductivity Temperature Display Auto Hold Function

5 in 1 Hot Tub Test Strips, 50 Strips Easy Accurate Water Tester, Test for pH, Alkalinity, Free Chlorine(Bromine), Total Chlorine &Hardness for Water Pool & Hot Tub & Spa & Swimming Pools

Dioche Kit Pool Test PH Testing Kit for Pool Water Quality | Essential Test - Simple Operation - Includes Storage Box - Ideal & PH Ranges for Safe Swimming

4-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

3-in-1 Hot Tub Test Strips,100 Pcs Pool Test Strips for PH,Chlorine & Clearwater,Pool Water Hardness Testing Kit,Clear Water Dip Tester Strip for Lazy Spa,Bromine,Total Alkalinity & Cyanuric Acid

TDS Meter Digital Water Tester for Drinking Water, 4 in 1 TDS Water Quality Tester, Portable 0-9990ppm TDS EC & Temp(°C,°F) Meter Tester, Testing for Drinking Water, RO/DI System

TDS Meter Digital Water Tester, 3-in-1 TDS EC & Temperature Meter, Portable 0-9990 ppm Water Quality Tester for Drinking Water, RO/DI System, Aquariums, Hydroponics, Pools, Tap Water Testing

Pinafresa Water Quality Purity Detector 4in1 PH ORP H2 Temperature Hydrogen-Rich Meter Portable Pen for Aquarium Pool Pond Hydroponics

Dr.Deutsch Hot Tub Test Strips 150 Count, 3-in-1 Pool & Spa Water Test Kit for pH, Total Alkalinity, Free Chlorine & Bromine, Accurate Pool Test Strips for Swimming Pool & Spa, CE, FDA & UKCA

1 Pcs Hot Tub Test Strips, Pool and Spa Test for pH, Accurate 3 In 1 Pool Water Testing Kit, Ph Chlorine Alkaline Hardness Testing Strip, Clearwater Strip Quality Tester Paper, Free Chlorine and Bromi

Szjinbao 7-Way Pool Test Strips, 50 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine

Hydro Haus XL 200 Hot Tub & Pool Test Strips – 3-in-1 Water Testing Kit for Chlorine, Bromine & pH – Spa & Swimming Pool Chemical Test Strips – Extra Large 200 Pack

NATFORTREE 4 in 1 TDS EC Temp Meter, smiley and frowny Digital Water Tester

100 Pack 5 in 1 Hot Tub Testing Strips, Water Quality Test Strips for Swimming Pool and Spa Water Testing Accurate pH Chlorine Bromine Total Alkalinity Detection Dip Water Quality Tester Easy Use

2026 NEW 4-in-1 TDS Meter Digital Water Tester，Portable Water Quality Tester TDS/EC/Temperature (℃/℉) Meter 0-9999ppm,Range±2% Accuracy Testing for Drinking Water, RO/DI System Aquariums Hydroponics

VivaTest Hot Tub Test Strips and Pool Test Strips, 100 Pack 3-in-1 Water Testing Kit for Free Chlorine, pH and Total Alkalinity, Swimming Pools and Spas

5 in 1 Hot Tub Test Strips, 50 Counts Water Test Strips Quickly Detect pH, Total Alkalinity, Total Hardness, Free Chlorine and Bromine, for Pool and Spa, Aquarium & Drinking Water Testing

Ueomul pH Chlorine Meter 7 IN 1, Tester pH Chlorine (FAC) TDS EC SALT ORP & Temperature with ATC, IP67 Waterproof, 0.01pH High Precision Water Quality Tester for Pool & Spa, Drinking Water, Hydroponic

KIMIBST Pool Test Strips: 200CT 7-Way Professional Hot Tub & Spa Test Kit for Bromine pH Total Chlorine & Hardness Cyanuric Acid and More Accurate Testing Swimming Pool Water

Digital TDS Water Meter - 0-9990 ppm Water Quality Tester for Drinking Water, Aquariums,Farming, Pools | RO-RODI Systems

New 9-in-1 Smart Water Tester, Digital Water Tester for TDS, Turbidity, EC, Temp, Salt, GH, TOC, COD, UV275, Water Quality Tester Real-Time APP Monitoring, Testing for Drinking Water, Tap, Outdoor