Testers

Deep Blue

✓

Testers

Deep Blue - 6-Way Test Strips 50 Strips Chlorine PH TA Calcium Cyanuric Bromine Professional

$29.99

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7 in 1 - Pool test strips - Pool and Spa - Hot tub test strips - 150 strips - Chlorine - PH - Total Alkalinity -Total Chlorine - Bromine - Cyanuric Acid - Total Hardness, Water Chemical Testing kit.

Generic

✓

Testers

7 in 1 - Pool test strips - Pool and Spa - Hot tub test strips - 150 strips - Chlorine - PH - Total Alkalinity -Total Chlorine - Bromine - Cyanuric Acid - Total Hardness, Water Chemical Testing kit.

$35.99

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AQUAVERITY

✓

Testers

AQUAVERITY Hot Tub Test Strips 3 in 1, 100 Pool, Spa and Hot Tub Testing Strips for Total Alkalinity, Free Chlorine and Bromine and pH, Accurate 3 in 1 Water Testing Pool and Spa Test Strips

$63.99

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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

★★★★★3.8

$22.99

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150PCS Water PH Testing Strips, Water Test Kits for Drink Water, Aquarium Test Strips, PH Acid and Alkali Test Strips

SPORTARC

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Testers

150PCS Water PH Testing Strips, Water Test Kits for Drink Water, Aquarium Test Strips, PH Acid and Alkali Test Strips

$24.99

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UIUZMAR

✓

Testers

UIUZMAR Salinity Pool pH and Salt Meter, Swimming Pool Salinity Tester, 5-in-1 Digital Display, pH TDS EC Salinity Temperature Meter for Pool, Hydroponic, Aquarium, Drinking Water, Spa

★★★★★4.2

$83.99

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ARKA

✓

Testers

ARKA myAQUA pH/TDS/EC Meter - Water Quality Tester for pH, TDS, EC & Temperature, Includes Calibration Solution, Ideal for Aquariums, Pools, Ponds & Drinking Water

★★★★★3.2

$107.99

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POOLPO

✓

Testers

POOLPO 10A Protable Water Quality Electrolyzer Test Premium Electrode Rod Electrolysis Instrument Household Swimming Pool TDS Testers High Accuracy PH Meter for Water

★★★★★5

$46.99

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Bestway

✓

Testers

Bestway | Pool & Hot Tub 3-in-1 Chemical Test Strips 50-Pack

$17.99

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SBINTUOR

✓

Testers

SBINTUOR Hot Tub Test Strips 3 in 1, Pool Testing Strips PH Test/Chlorine Test/Total Alkalinity, Water Quality Tester for Hot Tubs, Swimming Pools, Spa - 50 Strips

$23.99

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SBINTUOR

✓

Testers

SBINTUOR Hot Tub Test Strips 7 in 1, Pool Testing Strips for PH Test/Chlorine Test/Total Hardness/Total Bromine/Total Alkalinity... Water Quality Tester for Hot Tubs Swimming Pools Spa - 50 Strips

$29.99

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Safe Swim

⏳

Testers

Safe Swim Meter Reagent DPD-4 Total Chlorine (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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Safe Swim

✓

Testers

Safe Swim Meter Reagent Copper (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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Safe Swim

✓

Testers

Safe Swim Meter Reagent DPD-3 Combined Chlorine (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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Safe Swim

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Testers

Safe Swim Meter Reagent DPD-1 Free Chlorine (For Use With Safe Swim Digital Photometer ONLY)

$51.99

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Safe Swim

✓

Testers

Safe Swim Meter - Digital Testing for Pools & Hot Tubs - Free Chlorine, Combined Chlorine, Total Chlorine, Bromine, Copper, pH, & Total Alkalinity. (Safe Swim Digital Meter)

$474.99

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Safe Swim

✓

Testers

Safe Swim Meter Reagent Total Alkalinity (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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Safe Swim

✓

Testers

Safe Swim Meter Reagent pH (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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Safe Swim

✓

Testers

Safe Swim Meter Reagent DPD-4 Total Bromine (For Use With Safe Swim Digital Photometer ONLY)

$52.99

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PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester for Aquarium/Hydroponics/Drinking Water/Pool/Pond

flintronic

✓

Testers

PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester for Aquarium/Hydroponics/Drinking Water/Pool/Pond

★★★★★4

$47.99

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Chlorine and PH Tester, Digital Swimming Pool Tester, Portable Electric Spa Chlorines Reader, Swimming Pool Chlorines Monitor, Water Quality Analyzer, Spa Water Tester, Water Testing Meter

Yosoo Health Gear

✓

Testers

Chlorine and PH Tester, Digital Swimming Pool Tester, Portable Electric Spa Chlorines Reader, Swimming Pool Chlorines Monitor, Water Quality Analyzer, Spa Water Tester, Water Testing Meter

$63.99

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Bluetooth Swimming Pool Water Tester 6-in-1 EC/Salinity/pH/ORP/Temperature/Chlorine Meter, Wireless Floating Smart Pool Monitor Water Tester for Pools, Hot Tubs, & Swim Spas

GAIN EXPRESS

✓

Testers

Bluetooth Swimming Pool Water Tester 6-in-1 EC/Salinity/pH/ORP/Temperature/Chlorine Meter, Wireless Floating Smart Pool Monitor Water Tester for Pools, Hot Tubs, & Swim Spas

$214.99

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CODKU

✓

Testers

CODKU Hot Tub Test Strips, 50 Strips Pool and Spa Test Strips Measures Chlorine, PH, Total Alkalinity and Bromine, 3 in 1 Pool Water Testing Kit

$26.99

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YINMIK

✓

Testers

Digital pH Salt Tester, YINMIK Salinity Meter for Pool, 5 in 1 TDS EC Temp Meter for Hydroponics, Salt ppm Test pen with ATC & Backlight, Accurate device for Koi pond, Aquarium, SPA, Hot Tub, Softener

$82.99

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Featured products

Deep Blue - 6-Way Test Strips 50 Strips Chlorine PH TA Calcium Cyanuric Bromine Professional

7 in 1 - Pool test strips - Pool and Spa - Hot tub test strips - 150 strips - Chlorine - PH - Total Alkalinity -Total Chlorine - Bromine - Cyanuric Acid - Total Hardness, Water Chemical Testing kit.

AQUAVERITY Hot Tub Test Strips 3 in 1, 100 Pool, Spa and Hot Tub Testing Strips for Total Alkalinity, Free Chlorine and Bromine and pH, Accurate 3 in 1 Water Testing Pool and Spa Test Strips

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

150PCS Water PH Testing Strips, Water Test Kits for Drink Water, Aquarium Test Strips, PH Acid and Alkali Test Strips

UIUZMAR Salinity Pool pH and Salt Meter, Swimming Pool Salinity Tester, 5-in-1 Digital Display, pH TDS EC Salinity Temperature Meter for Pool, Hydroponic, Aquarium, Drinking Water, Spa

ARKA myAQUA pH/TDS/EC Meter - Water Quality Tester for pH, TDS, EC & Temperature, Includes Calibration Solution, Ideal for Aquariums, Pools, Ponds & Drinking Water

POOLPO 10A Protable Water Quality Electrolyzer Test Premium Electrode Rod Electrolysis Instrument Household Swimming Pool TDS Testers High Accuracy PH Meter for Water

Bestway | Pool & Hot Tub 3-in-1 Chemical Test Strips 50-Pack

SBINTUOR Hot Tub Test Strips 3 in 1, Pool Testing Strips PH Test/Chlorine Test/Total Alkalinity, Water Quality Tester for Hot Tubs, Swimming Pools, Spa - 50 Strips

SBINTUOR Hot Tub Test Strips 7 in 1, Pool Testing Strips for PH Test/Chlorine Test/Total Hardness/Total Bromine/Total Alkalinity... Water Quality Tester for Hot Tubs Swimming Pools Spa - 50 Strips

Safe Swim Meter Reagent DPD-4 Total Chlorine (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter Reagent Copper (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter Reagent DPD-3 Combined Chlorine (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter Reagent DPD-1 Free Chlorine (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter - Digital Testing for Pools & Hot Tubs - Free Chlorine, Combined Chlorine, Total Chlorine, Bromine, Copper, pH, & Total Alkalinity. (Safe Swim Digital Meter)

Safe Swim Meter Reagent Total Alkalinity (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter Reagent pH (For Use With Safe Swim Digital Photometer ONLY)

Safe Swim Meter Reagent DPD-4 Total Bromine (For Use With Safe Swim Digital Photometer ONLY)

PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester for Aquarium/Hydroponics/Drinking Water/Pool/Pond

Chlorine and PH Tester, Digital Swimming Pool Tester, Portable Electric Spa Chlorines Reader, Swimming Pool Chlorines Monitor, Water Quality Analyzer, Spa Water Tester, Water Testing Meter

Bluetooth Swimming Pool Water Tester 6-in-1 EC/Salinity/pH/ORP/Temperature/Chlorine Meter, Wireless Floating Smart Pool Monitor Water Tester for Pools, Hot Tubs, & Swim Spas

CODKU Hot Tub Test Strips, 50 Strips Pool and Spa Test Strips Measures Chlorine, PH, Total Alkalinity and Bromine, 3 in 1 Pool Water Testing Kit

Digital pH Salt Tester, YINMIK Salinity Meter for Pool, 5 in 1 TDS EC Temp Meter for Hydroponics, Salt ppm Test pen with ATC & Backlight, Accurate device for Koi pond, Aquarium, SPA, Hot Tub, Softener