Results for water hardness tester strip

8-in-1 Aquarium Test Strips 50&100ct Fast Water Testing for Fish TankAmmonia Nitrate PH Ammonia, Alkalinity, Hardness, Chlorine, etc.
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8-in-1 Aquarium Test Strips 50&100ct Fast Water Testing for Fish TankAmmonia Nitrate PH Ammonia, Alkalinity, Hardness, Chlorine, etc.

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Varify 7 in 1 Pool and Spa Test Strips- Easy to Use Water Testing Kit for Pool, Spa, Hot Tub & More - Tester Strip for Water Hardness, Chlorine, Bromine, pH, Alkalinity and Cyanuric Acid (100 Strips)
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Varify 7 in 1 Pool and Spa Test Strips- Easy to Use Water Testing Kit for Pool, Spa, Hot Tub & More - Tester Strip for Water Hardness, Chlorine, Bromine, pH, Alkalinity and Cyanuric Acid (100 Strips)

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-17%$9.99$11.97
SEAOURA 9-in-1 Aquarium Test for Fish Tanks - 65 Strips Water Testing Strips for Aquariums & Ponds Accurate Testing Iron Copper Nitrate Nitrite Chlorine Hardness Alkalinity Carbonate pH Aquarium Accessories
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SEAOURA 9-in-1 Aquarium Test for Fish Tanks - 65 Strips Water Testing Strips for Aquariums & Ponds Accurate Testing Iron Copper Nitrate Nitrite Chlorine Hardness Alkalinity Carbonate pH Aquarium Accessories

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-55%$8.99$19.99
KYNOVRA 5 in 1 TDS Meter Water Tester + pH Test Strips Kit – Digital Water Quality Tester (0–9990 ppm) with Case & Batteries – Accurate Drinking Water, Aquarium, RO/DI, Hydroponics
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KYNOVRA 5 in 1 TDS Meter Water Tester + pH Test Strips Kit – Digital Water Quality Tester (0–9990 ppm) with Case & Batteries – Accurate Drinking Water, Aquarium, RO/DI, Hydroponics

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$19.99
Varify Water Hardness Test Kit - 150 Hard Water Test Strips for Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More (0-425 ppm)
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Varify Water Hardness Test Kit - 150 Hard Water Test Strips for Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More (0-425 ppm)

4.676 sold
Limited time deal
-17%$9.99$11.97
OUHOE 3-in-1 pH Test Strips — Pool Water Quality, Total Alkalinity, Hardness, and Acidity/Alkalinity Testing
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OUHOE 3-in-1 pH Test Strips — Pool Water Quality, Total Alkalinity, Hardness, and Acidity/Alkalinity Testing

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All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride
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All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride

Limited time deal
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212 MAIN Insta-Test5 Water Testing Test Strips, 50 Count, Tests Chlorine, Bromine, Total Chlorine, PH, Alkalinity & Hardness, Pool Accessories for Outdoor Swimming Pools, Water Quality Tester, Outdoor Swimming Pool, Ph Meter
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212 MAIN Insta-Test5 Water Testing Test Strips, 50 Count, Tests Chlorine, Bromine, Total Chlorine, PH, Alkalinity & Hardness, Pool Accessories for Outdoor Swimming Pools, Water Quality Tester, Outdoor Swimming Pool, Ph Meter

-26%$21.91$29.58
150pcs 7-In-1 Pool and Spa Test Strips, Quick Accurate Water Quality Tester, Detects Chlorine, Ph, Alkalinity, Hardness, Cyanuric Acid

150pcs 7-In-1 Pool and Spa Test Strips, Quick Accurate Water Quality Tester, Detects Chlorine, Ph, Alkalinity, Hardness, Cyanuric Acid

$43.57
100-Count Multi-Purpose Pool Swimming Pool and SPA Test Strips,Hot Tub Test Strips 7 in 1-Accurate Tests for pH, Hardness, Total Chlorine,Total Alkalinity, Cyanuric Acid and Bromine
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100-Count Multi-Purpose Pool Swimming Pool and SPA Test Strips,Hot Tub Test Strips 7 in 1-Accurate Tests for pH, Hardness, Total Chlorine,Total Alkalinity, Cyanuric Acid and Bromine

4.053 sold
-56%$6.99$15.80
8-in-1 Aquarium Test Kit (150 Strips) for Freshwater & Saltwater - Quick & Accurate Water Testing for Aquariums & Ponds. Tests Free Chlorine, Hardness, pH, Ammonia Nitrogen, etc. (K02-150)

8-in-1 Aquarium Test Kit (150 Strips) for Freshwater & Saltwater - Quick & Accurate Water Testing for Aquariums & Ponds. Tests Free Chlorine, Hardness, pH, Ammonia Nitrogen, etc. (K02-150)

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17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &
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17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &

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Drinking Water Test Kit - 16 in 1 Home Well Tap Water Testing Strips for Lead Hardness pH Iron Copper Chlorine & More - 50 Strips

Drinking Water Test Kit - 16 in 1 Home Well Tap Water Testing Strips for Lead Hardness pH Iron Copper Chlorine & More - 50 Strips

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$9.99
All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride
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All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride

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7 in 1 Pool and Test Strips- Easy to Use Water Testing Kit for Pool, , Hot Tub & - Tester Strip for Water Hardness, Chlorine, Bromine, pH, Alkalinity and Cyanuric Acid (100 Strips)
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7 in 1 Pool and Test Strips- Easy to Use Water Testing Kit for Pool, , Hot Tub & - Tester Strip for Water Hardness, Chlorine, Bromine, pH, Alkalinity and Cyanuric Acid (100 Strips)

Limited time deal
$18.95
All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride
Free shipping

All-New 20 in 1 Drinking Water Testing Kit 120 Strips Home Tap and Well Water Test Kit for Hardness Lead Iron Copper Chlorine Fluoride

Limited time deal
$33.76
17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &
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17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &

Limited time deal
$42.75
17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &
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17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &

Limited time deal
$42.75
17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &
Free shipping

17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Tester Kits - Well, Tap, , City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper &

Limited time deal
$45.45
8 in 1 Aquarium Test Kit Fish Test Strips Accurate Water Quality Testing Strips for Ammonia PH Total Alkalinity Carbonate Hardness Free Chlorine Nitrate Nitrite Temperature (100 Strips)

8 in 1 Aquarium Test Kit Fish Test Strips Accurate Water Quality Testing Strips for Ammonia PH Total Alkalinity Carbonate Hardness Free Chlorine Nitrate Nitrite Temperature (100 Strips)

Limited time deal
$6.74
Drinking Water Test Kit 16-in-1 – Home, Well & Tap Water Test Strips for Lead, pH, Hardness, Iron, Copper, Chlorine – 50 Count

Drinking Water Test Kit 16-in-1 – Home, Well & Tap Water Test Strips for Lead, pH, Hardness, Iron, Copper, Chlorine – 50 Count

Limited time deal
$9.99
20 in 1 Complete Drinking Water Test Kits, 125 Strips-Well, Tap, Home, City Water Testing Strip for Lead, Chlorine, Hardness, Iron, Fluoride, Copper & MoreQuesear

20 in 1 Complete Drinking Water Test Kits, 125 Strips-Well, Tap, Home, City Water Testing Strip for Lead, Chlorine, Hardness, Iron, Fluoride, Copper & MoreQuesear

-40%$21.00$35.00
9-in-1 Aquarium Test Strips 65&135ct Fast Water Testing for Fish TankAmmonia Nitrate PH Ammonia, Alkalinity, Hardness, Chlorine, etc.
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9-in-1 Aquarium Test Strips 65&135ct Fast Water Testing for Fish TankAmmonia Nitrate PH Ammonia, Alkalinity, Hardness, Chlorine, etc.

Limited time deal
-52%$8.99$18.59
Varify 17 in 1 Complete Drinking Water Test Kit - 100 Strips + 2 Bacteria Tester Kits - Well, Tap, Home, City Water Testing Strip
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Varify 17 in 1 Complete Drinking Water Test Kit - 100 Strips + 2 Bacteria Tester Kits - Well, Tap, Home, City Water Testing Strip

5.0493 sold
Limited time deal
-60%$19.99$50.00
7-in-1 Digital Pool Salt & pH Tester | ORP, EC, TDS, Temp Meter for Saltwater Pools,Water quality tester smart water,testing my pool water with water strips,testing pool water, Professional Testing for Drinking Water, RO/DI System, Aquariums, Pool, etc.
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7-in-1 Digital Pool Salt & pH Tester | ORP, EC, TDS, Temp Meter for Saltwater Pools,Water quality tester smart water,testing my pool water with water strips,testing pool water, Professional Testing for Drinking Water, RO/DI System, Aquariums, Pool, etc.

3.7713 sold
$25.00
Practical 4-in-1 water quality tester detects TDS, EC and water temperature. An essential household tool for testing drinking water, pool water and aquarium water.
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Practical 4-in-1 water quality tester detects TDS, EC and water temperature. An essential household tool for testing drinking water, pool water and aquarium water.

Limited time deal
$5.99
2026 Upgraded 4-in-1 Digital TDS Meter - Digital Water Quality Tester for TDS, EC and Temperature (°C/°F) | 0-9990 ppm Range | Suitable for Drinking Water, Reverse Osmosis Systems, Aquariums and Swimming Pools inflatable pool Modern

2026 Upgraded 4-in-1 Digital TDS Meter - Digital Water Quality Tester for TDS, EC and Temperature (°C/°F) | 0-9990 ppm Range | Suitable for Drinking Water, Reverse Osmosis Systems, Aquariums and Swimming Pools inflatable pool Modern

4.894 sold
-52%$5.81$11.98
2026 Upgraded 6-in-1 Voice TDS Meter Digital Water Quality Tester-TDS, EC, Temperature (℃/℉) & Voice Prompt | for Drinking Water, RO System, Aquarium, Pool, Tap Water Testing | 0-9999ppm Range (White)

2026 Upgraded 6-in-1 Voice TDS Meter Digital Water Quality Tester-TDS, EC, Temperature (℃/℉) & Voice Prompt | for Drinking Water, RO System, Aquarium, Pool, Tap Water Testing | 0-9999ppm Range (White)

Limited time deal
-60%$36.79$91.97
5-in-1 Digital pH Meter, Highly Accurate Water Quality Tester with Backlight Screen, pH/EC/TDS/Salinity/Temp Meter, 0.01 Resolution pH Tester, TDS Meter for Drinking Water, Pool, Aquarium
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5-in-1 Digital pH Meter, Highly Accurate Water Quality Tester with Backlight Screen, pH/EC/TDS/Salinity/Temp Meter, 0.01 Resolution pH Tester, TDS Meter for Drinking Water, Pool, Aquarium

5.06 sold
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-37%$25.90$40.99
16 in 1 Water Testing Kits For Drinking Water - High Sensitivity Drinking Water Test kit -Test Strips Detect PH, lead, Iron & Many|Home Water Purity PH Test Strips For Aquarium, Pool, Well & Tap Water

16 in 1 Water Testing Kits For Drinking Water - High Sensitivity Drinking Water Test kit -Test Strips Detect PH, lead, Iron & Many|Home Water Purity PH Test Strips For Aquarium, Pool, Well & Tap Water

$9.99

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