Testers

Safe Swim

✓

Testers

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

$53.99

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Safe Swim

✓

Testers

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

$51.99

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Safe Swim

✓

Testers

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

$52.99

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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)

$470.99

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Safe Swim

✓

Testers

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

$51.99

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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)

$53.99

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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

$48.99

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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

$66.99

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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

$184.99

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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

$68.99

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TEST ALL WATER

✓

Testers

Test All Water – Phenol Red Rapid Dissolve Tablets | pH Test Range 6.8–8.4 | For Swimming Pools, Spas & Hot Tubs | Accurate Results for Comparators & Testers, Reliable Colour Change (250 Pack)

$74.99

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TDS Temperature S.G Salt Salinity Meter - Digital LCD Display for Accurate Water Testing

GAIN EXPRESS

✓

Testers

TDS Temperature S.G Salt Salinity Meter - Digital LCD Display for Accurate Water Testing

$72.99

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Hot Tub Test Strips, Pool and Spa Test Strips 4 in 1 Measures pH Free Chlorine and Bromine Total Alkalinity & Cyanuric Acid - 90pcs

Dr.Tim.Wang

✓

Testers

Hot Tub Test Strips, Pool and Spa Test Strips 4 in 1 Measures pH Free Chlorine and Bromine Total Alkalinity & Cyanuric Acid - 90pcs

★★★★★4.5

$59.99

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Zerodis

✓

Testers

Zerodis Digital Salinity Meter, Handheld Swimming Pool Water Test Kits Screen Display Accurate Water Tester Easy to Use Salt Water Pool Tester with Storage Box for Pools Aquaculture

$65.99

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BLE C600 Digital Meter and Water Test Kit, Water Quality Testing Pen, Smart Bluetooth PH Tester with ATC, PH TDS EC ORP SG Salinity Temperature Meter

GOWENIC

✓

Testers

BLE C600 Digital Meter and Water Test Kit, Water Quality Testing Pen, Smart Bluetooth PH Tester with ATC, PH TDS EC ORP SG Salinity Temperature Meter

$115.99

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Test All Water – PoolLab 2.0 Photometer | Digital Meter & Water Testing Device for Swimming Pools & Hot Tubs - Wi-Fi & Bluetooth Enabled | Test pH & Chlorine Plus 24 Parameters | Triple Cuvette, IP68

Water-ID

⏳

Testers

Test All Water – PoolLab 2.0 Photometer | Digital Meter & Water Testing Device for Swimming Pools & Hot Tubs - Wi-Fi & Bluetooth Enabled | Test pH & Chlorine Plus 24 Parameters | Triple Cuvette, IP68

$514.99

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Coliform Bacteria Water Test Kit for E. coli, Salmonella, Legionella, & Many Other Strains in Drinking Water - Easy, Quick, & Accurate Bacterial Testing for Well Water, Tap Water, Pool Water

Leaping Lynx

✓

Testers

Coliform Bacteria Water Test Kit for E. coli, Salmonella, Legionella, & Many Other Strains in Drinking Water - Easy, Quick, & Accurate Bacterial Testing for Well Water, Tap Water, Pool Water

★★★★★4.2

$65.99

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Hay Moisture Meter, Multifunctional Grain Moisture Test Meter with LCD Backlit Display, Wheat Water Content Analyzer, Probe Type Humidity Tester for Agriculture

Ayayu

✓

Testers

Hay Moisture Meter, Multifunctional Grain Moisture Test Meter with LCD Backlit Display, Wheat Water Content Analyzer, Probe Type Humidity Tester for Agriculture

$86.99

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Digital Hydrogen Detection Pen Backlit LCD Display Hydrogen Tester for Water Wine Spas Aquariums

Hztyyier

✓

Testers

Digital Hydrogen Detection Pen Backlit LCD Display Hydrogen Tester for Water Wine Spas Aquariums

$79.99

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Mumusuki

✓

Testers

Mumusuki Digital Water Tester, Water Testing Meter 6 in 1 PH EC TDS ORP TEMP Residual Chlorine Water Tester Pen Easy to Use Water Quality Tester for Swimming Pool

$165.99

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Weedness

✓

Testers

Weedness Aquamaster P160 Combo Meter - EC and pH Meter Garden Plants Value Tester Pool Test Strips for Pool pH Meter Measure Digital Water Tester Aquarium

★★★★★5

$480.99

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Salinity Meter Digital Pen Type Salinity Tester for Saltwater Swimming Pool Salinity Test Pen

Headerbs

✓

Testers

Salinity Meter Digital Pen Type Salinity Tester for Saltwater Swimming Pool Salinity Test Pen

$65.99

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BMUT

✓

Testers

BMUT CT-2000 100 Test Strips Chlorine Dioxide Solution (0-2000 ppm) Quick Test Water

★★★★★4.6

$60.99

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Featured products

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

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

Test All Water – Phenol Red Rapid Dissolve Tablets | pH Test Range 6.8–8.4 | For Swimming Pools, Spas & Hot Tubs | Accurate Results for Comparators & Testers, Reliable Colour Change (250 Pack)

TDS Temperature S.G Salt Salinity Meter - Digital LCD Display for Accurate Water Testing

Hot Tub Test Strips, Pool and Spa Test Strips 4 in 1 Measures pH Free Chlorine and Bromine Total Alkalinity & Cyanuric Acid - 90pcs

Zerodis Digital Salinity Meter, Handheld Swimming Pool Water Test Kits Screen Display Accurate Water Tester Easy to Use Salt Water Pool Tester with Storage Box for Pools Aquaculture

BLE C600 Digital Meter and Water Test Kit, Water Quality Testing Pen, Smart Bluetooth PH Tester with ATC, PH TDS EC ORP SG Salinity Temperature Meter

Test All Water – PoolLab 2.0 Photometer | Digital Meter & Water Testing Device for Swimming Pools & Hot Tubs - Wi-Fi & Bluetooth Enabled | Test pH & Chlorine Plus 24 Parameters | Triple Cuvette, IP68

Coliform Bacteria Water Test Kit for E. coli, Salmonella, Legionella, & Many Other Strains in Drinking Water - Easy, Quick, & Accurate Bacterial Testing for Well Water, Tap Water, Pool Water

Hay Moisture Meter, Multifunctional Grain Moisture Test Meter with LCD Backlit Display, Wheat Water Content Analyzer, Probe Type Humidity Tester for Agriculture

Digital Hydrogen Detection Pen Backlit LCD Display Hydrogen Tester for Water Wine Spas Aquariums

Mumusuki Digital Water Tester, Water Testing Meter 6 in 1 PH EC TDS ORP TEMP Residual Chlorine Water Tester Pen Easy to Use Water Quality Tester for Swimming Pool

Weedness Aquamaster P160 Combo Meter - EC and pH Meter Garden Plants Value Tester Pool Test Strips for Pool pH Meter Measure Digital Water Tester Aquarium

Salinity Meter Digital Pen Type Salinity Tester for Saltwater Swimming Pool Salinity Test Pen

BMUT CT-2000 100 Test Strips Chlorine Dioxide Solution (0-2000 ppm) Quick Test Water