Testers

Quick 15 Minute Water Bacteria Test (2 Tests) for swimming pools, spas, lakes, rivers and open water

SimplexHealth

⏳

Testers

Quick 15 Minute Water Bacteria Test (2 Tests) for swimming pools, spas, lakes, rivers and open water

$45.99

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CENPEK

⏳

Testers

CENPEK 100 PCS Pool Test Strips, 7 IN 1 Swimming Pool Spa Hot Tubs Water Test Strip for Total Chlorine, Free Chlorine, Bromine, pH, Total Alkalinity, Cyanuric Acid, Total Hardness

$41.99

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CENPEK

✓

Testers

CENPEK Water Quality Tester ORP‑169F Water Quality Tester ORP Negative Potential Portable Water Quality Test Pen Meter

$63.99

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CENPEK

⏳

Testers

CENPEK TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

$20.99

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Inkbird

⏳

Testers

Inkbird Water Quality Tester TDS EC Temperature 3 in 1 Test Meter Digital ITDS-01 Water Test Pen with Backlit LCD Display for Drinking Water Hydroponic Aquarium Swimming Pool Fish Tank Pond RO System

$53.99

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DollaTek

✓

Testers

DollaTek 3 in 1 Portable LCD Digital PH Meter TDS EC Tester Pen Water Purity PPM Filter with 4 Different Modes Water Level Tester

$38.99

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100 Pcs Hot Tub Testing Strips,6 in 1 Kit Pool Testing Strips and Spa Chemicals Swimming for Rapid Measurement of Residual Chlorine in Water PH Total Hardness Alkalinity for Tubs Free Bromine Ttorage

foris

⏳

Testers

100 Pcs Hot Tub Testing Strips,6 in 1 Kit Pool Testing Strips and Spa Chemicals Swimming for Rapid Measurement of Residual Chlorine in Water PH Total Hardness Alkalinity for Tubs Free Bromine Ttorage

$26.99

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Water Quality Tester Water Quality Purity Monitor Aquarium Swimming Pool Meter Tester Digital LCD TDS

Tyenaza

✓

Testers

Water Quality Tester Water Quality Purity Monitor Aquarium Swimming Pool Meter Tester Digital LCD TDS

$27.99

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Hot Tub Test Strips, 50 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

SHATCHI

⏳

Testers

Hot Tub Test Strips, 50 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

$18.99

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Hot Tub Test Strips, 150 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

SHATCHI

⏳

Testers

Hot Tub Test Strips, 150 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

$47.99

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150 Dip 3-in-1 Test Strips Blue Sparkle for Ground Pool Spa and Hot Tubs Treatment to Measures PH, Alkaline and Chlorine

SHATCHI

⏳

Testers

150 Dip 3-in-1 Test Strips Blue Sparkle for Ground Pool Spa and Hot Tubs Treatment to Measures PH, Alkaline and Chlorine

$48.99

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Water Quality Tester, 0‑9999ppm TDS/EC Tester Portable Water Quality Monitor Test Pen Multifunction Testing Instrumen for Aquarium, Swimming Pool, Drinking Water, Indoor Outdoor

ZJchao

⏳

Testers

Water Quality Tester, 0‑9999ppm TDS/EC Tester Portable Water Quality Monitor Test Pen Multifunction Testing Instrumen for Aquarium, Swimming Pool, Drinking Water, Indoor Outdoor

$17.99

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CANADIAN SPA CO.

⏳

Testers

Canadian Spa Company Test Strips for Hot Tubs and Spas (50) Pk

$38.99

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TEST ALL WATER

⏳

Testers

Testallwater - Lovibond Multipack | DPD No. 1 & Phenol Red Rapid Tablets | 100 Tests for Chlorine & pH | Compatible with Lovibond Kits | For Pools & Water Dispensers

$115.99

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Mesee

⏳

Testers

Mesee TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

$19.99

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Swimmingpool Water Quality Tester, Handheld Electric PH Meter+Chlorine Level Tester Water Quality Monitor, for Swimming Pool,Aquarium,Spa Water Quality Checker

Boaby

✓

Testers

Swimmingpool Water Quality Tester, Handheld Electric PH Meter+Chlorine Level Tester Water Quality Monitor, for Swimming Pool,Aquarium,Spa Water Quality Checker

$36.99

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Digital Salinity Meter, Waterproof Pen Type Salinity & Temp Meter Measurement Water Quality Temp Test Meter, 0.00ppt-9.99ppt, 10.0ppt-50ppt Salinity Guage for Salt Water Pool and Koi Fish Pond

Heayzoki

⏳

Testers

Digital Salinity Meter, Waterproof Pen Type Salinity & Temp Meter Measurement Water Quality Temp Test Meter, 0.00ppt-9.99ppt, 10.0ppt-50ppt Salinity Guage for Salt Water Pool and Koi Fish Pond

$78.99

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Bestgle

⏳

Testers

Bestgle Digital TDS Meter Temp PPM Tester Water Quality Testing Tool for Drinking Water Aquariums Pool

$18.99

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Chlorine Tester PH Meter, 2 in 1 Digital Water Quality Analysis Monitor for Swimming Pool, Spa, Drinking Water

Haofy

⏳

Testers

Chlorine Tester PH Meter, 2 in 1 Digital Water Quality Analysis Monitor for Swimming Pool, Spa, Drinking Water

$54.99

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TOPWAY

⏳

Testers

TOPWAY Digital PH Meter for Water, 4 in 1 PH TDS EC Temp Meter for Household Industry Hydrotherapy Hydroponics Aquarium Drinking Water Beauty Spa Swimming Pool, Batteries Included

$51.99

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Haofy

⏳

Testers

Haofy 5 in 1 Water Tester Multifunctional Water Quality Tester, Digital TDS/EC/Salinity/PH/Temperature Meter for Drinking Water, Pool, Aquarium, Fish Tank, Hydroponics

$55.99

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Reagents for - Pool Lab, PoolWaterLAB, Water Tester - DPD 1

Water-ID

✓

Testers

Reagents for - Pool Lab, PoolWaterLAB, Water Tester - DPD 1

★★★★★4.4

$44.99

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Water-ID

✓

Testers

Water-i.d. WATER TESTING EQUIPMENT Reagents for - PoolLab & PrimeLab (DPD 3 Photometer/Comparator)

★★★★★4.7

$41.99

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Water-ID

✓

Testers

Water-i.d. WATER TESTING EQUIPMENT Reagents for - PoolLab & PrimeLab (CyA-Test (Photometer/Comparator/Nessler))

★★★★★4.7

$44.99

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Featured products

Quick 15 Minute Water Bacteria Test (2 Tests) for swimming pools, spas, lakes, rivers and open water

CENPEK 100 PCS Pool Test Strips, 7 IN 1 Swimming Pool Spa Hot Tubs Water Test Strip for Total Chlorine, Free Chlorine, Bromine, pH, Total Alkalinity, Cyanuric Acid, Total Hardness

CENPEK Water Quality Tester ORP‑169F Water Quality Tester ORP Negative Potential Portable Water Quality Test Pen Meter

CENPEK TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

Inkbird Water Quality Tester TDS EC Temperature 3 in 1 Test Meter Digital ITDS-01 Water Test Pen with Backlit LCD Display for Drinking Water Hydroponic Aquarium Swimming Pool Fish Tank Pond RO System

DollaTek 3 in 1 Portable LCD Digital PH Meter TDS EC Tester Pen Water Purity PPM Filter with 4 Different Modes Water Level Tester

100 Pcs Hot Tub Testing Strips,6 in 1 Kit Pool Testing Strips and Spa Chemicals Swimming for Rapid Measurement of Residual Chlorine in Water PH Total Hardness Alkalinity for Tubs Free Bromine Ttorage

Water Quality Tester Water Quality Purity Monitor Aquarium Swimming Pool Meter Tester Digital LCD TDS

Hot Tub Test Strips, 50 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

Hot Tub Test Strips, 150 Strips for Hot Tubs, Spa, Pool Water Testing Kit Accurate 3 in 1 Quick Dip Tester 3 in 1 for pH,Total Alkalinity,Free Chlorine and Bromine

150 Dip 3-in-1 Test Strips Blue Sparkle for Ground Pool Spa and Hot Tubs Treatment to Measures PH, Alkaline and Chlorine

Water Quality Tester, 0‑9999ppm TDS/EC Tester Portable Water Quality Monitor Test Pen Multifunction Testing Instrumen for Aquarium, Swimming Pool, Drinking Water, Indoor Outdoor

Canadian Spa Company Test Strips for Hot Tubs and Spas (50) Pk

Testallwater - Lovibond Multipack | DPD No. 1 & Phenol Red Rapid Tablets | 100 Tests for Chlorine & pH | Compatible with Lovibond Kits | For Pools & Water Dispensers

Mesee TDS EC Tester Meter, 3-in-1 Professional Water Quality Test Meter LCD Digital TDS & EC Temperature Meter Testing Tool for Drinking Water, Aquariums, Hydroponics, Swimming Pools, Spas

Swimmingpool Water Quality Tester, Handheld Electric PH Meter+Chlorine Level Tester Water Quality Monitor, for Swimming Pool,Aquarium,Spa Water Quality Checker

Digital Salinity Meter, Waterproof Pen Type Salinity & Temp Meter Measurement Water Quality Temp Test Meter, 0.00ppt-9.99ppt, 10.0ppt-50ppt Salinity Guage for Salt Water Pool and Koi Fish Pond

Bestgle Digital TDS Meter Temp PPM Tester Water Quality Testing Tool for Drinking Water Aquariums Pool

Chlorine Tester PH Meter, 2 in 1 Digital Water Quality Analysis Monitor for Swimming Pool, Spa, Drinking Water

TOPWAY Digital PH Meter for Water, 4 in 1 PH TDS EC Temp Meter for Household Industry Hydrotherapy Hydroponics Aquarium Drinking Water Beauty Spa Swimming Pool, Batteries Included

Haofy 5 in 1 Water Tester Multifunctional Water Quality Tester, Digital TDS/EC/Salinity/PH/Temperature Meter for Drinking Water, Pool, Aquarium, Fish Tank, Hydroponics

Reagents for - Pool Lab, PoolWaterLAB, Water Tester - DPD 1

Water-i.d. WATER TESTING EQUIPMENT Reagents for - PoolLab & PrimeLab (DPD 3 Photometer/Comparator)

Water-i.d. WATER TESTING EQUIPMENT Reagents for - PoolLab & PrimeLab (CyA-Test (Photometer/Comparator/Nessler))