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$84.13
Fastcheck15 In-Office Water Test Strip 6/Pk
Supply Clinic LLC
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Fastcheck15 In-Office Water Test Strip 6/Pk
Supply Clinic LLC
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Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness -
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Clean Water Store
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Hach Hardness (Total & Calcium) Test Kit Model HA-4P MG-L 145701
Core & Main
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Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
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Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
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Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
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IceMachinesPlus_2024
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Home Depot
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Home Depot
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Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
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Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
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Taylor Drop Test, Hardness (Calcium), EDTA K-1770
PoolZoom.com
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Hach Total Hardness Test Strips, 0 To 425 Mg/L, 50 Strips/Pk | Cole-Parmer
Cole-Parmer
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Hach Total Hardness Test Strips, 0 To 425 Mg/L, 50 Strips/Pk | Cole-Parmer
Cole-Parmer
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The Pond Guy
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The Pond Guy
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Isopure Water
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AliExpress
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AliExpress
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Grayline Medical
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Grayline Medical
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Target
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Target
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Hach Hardness Drop Test Kit , Low Range ( 1 To 20 Ppm, 1 To 20Gpg) | Cole-Parmer
Cole-Parmer
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Hach Hardness Drop Test Kit , Low Range ( 1 To 20 Ppm, 1 To 20Gpg) | Cole-Parmer
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Carolina Biological Supply
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Sponsored
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$34.25
Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
53
$34.25
Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$80.28
Taylor Drop Test Hardness Calcium Magnesium - K-1722
Pool Web
$80.28
Taylor Drop Test Hardness Calcium Magnesium - K-1722
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Culligan Water Test Kit
Ace Hardware
185
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Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
Free shipping
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Home Depot
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Home Depot
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Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
Free shipping
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Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
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Taylor Drop Test, Hardness (Calcium), EDTA K-1770
PoolZoom.com
1
$40.29
Taylor Drop Test, Hardness (Calcium), EDTA K-1770
PoolZoom.com
$21.65
Hach Total Hardness Test Strips, 0 To 425 Mg/L, 50 Strips/Pk | Cole-Parmer
Cole-Parmer
$21.65
Hach Total Hardness Test Strips, 0 To 425 Mg/L, 50 Strips/Pk | Cole-Parmer
Cole-Parmer
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Carbonate Hardness Test Strip - Single Test
The Pond Guy
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The Pond Guy
$17.04
Sensafe (480008) Total Hardness Test Bottle 50 Test Strips
Isopure Water
320
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Sensafe (480008) Total Hardness Test Bottle 50 Test Strips
Isopure Water
$4.42
$4.71
Water Hardness Test Kit Hard Water Test Strips For Water Softener 50 Strip Pack 16-In-1 Swimming
AliExpress
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AliExpress
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Micro Essential Lab Hydrion Water Hardness Test Kit - KIT, WATER, HARDNESS, MODERATE / HARD, 2 ROLLS - F30-SPLTY-HARDNE-DRD - 1 Each / Each
Grayline Medical
$30.99
Micro Essential Lab Hydrion Water Hardness Test Kit - KIT, WATER, HARDNESS, MODERATE / HARD, 2 ROLLS - F30-SPLTY-HARDNE-DRD - 1 Each / Each
Grayline Medical
$8.98
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API KH Carbonate Hardness Fresh & Salt Water Aquarium Test Kit
Chewy.com
10
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Chewy.com
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Rainbow Total Water Hardness Test Kit - R151276
Pool Web
165
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Pool Web
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Pro-Lab Water Test Kit
Ace Hardware
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Ace Hardware
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API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
Chewy.com
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Chewy.com
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APEC Water Systems TDS Test Kit For Home Use: PPM Water Tester, Unpleasant Tastes Filter, BPA-Free, Blue
Target
Free shipping
$17.99
APEC Water Systems TDS Test Kit For Home Use: PPM Water Tester, Unpleasant Tastes Filter, BPA-Free, Blue
Target

Shop hard water testing

Sponsored
About our ads
$84.13
Fastcheck15 In-Office Water Test Strip 6/Pk
Supply Clinic LLC
$84.13
Fastcheck15 In-Office Water Test Strip 6/Pk
Supply Clinic LLC
$11.99
Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness -
Amazon.com
3K+
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Amazon.com
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Total Hardness Testing Strips - 5-Pack
US Water Systems
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US Water Systems
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Simpure TDS Meter Digital Water Tester, 4 in 1 TDS EC & Temperature Meter, Water Quality Hardness Testing Kits, High Accuracy PPM Meter For Drinking
Amazon.com
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Simpure TDS Meter Digital Water Tester, 4 in 1 TDS EC & Temperature Meter, Water Quality Hardness Testing Kits, High Accuracy PPM Meter For Drinking
Amazon.com
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$11.86
Total Hardness Testing Strips - 50Pk
US Water Systems
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US Water Systems
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Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
Amazon.com
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Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
Amazon.com
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Hach Total Hardness Test Strips 0-425 Mg/L 2745250
Core & Main
$21.65
Hach Total Hardness Test Strips 0-425 Mg/L 2745250
Core & Main
$16.95
$21.19
Hardness 3 Solution 1.0Oz For Field Test Kits - 2029
US Water Systems
20% off
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US Water Systems
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Hach Total Hardness Test Kit Model 5-EP 145400
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Hardness Test Kit Pro II
Clean Water Store
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Clean Water Store
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Hach Hardness (Total & Calcium) Test Kit Model HA-4P MG-L 145701
Core & Main
$155.00
Hach Hardness (Total & Calcium) Test Kit Model HA-4P MG-L 145701
Core & Main
$34.25
Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
53
$34.25
Hach Hardness Drop Test Kit , High Range (Range 1 To 30 Gpg) | Cole-Parmer
Cole-Parmer
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$80.28
Taylor Drop Test Hardness Calcium Magnesium - K-1722
Pool Web
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Taylor Drop Test Hardness Calcium Magnesium - K-1722
Pool Web
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Culligan Water Test Kit
Ace Hardware
185
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Ace Hardware
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Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
Free shipping
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Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
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Drinking Water Quality Test Kit
Home Depot
Free shipping
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Home Depot
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
Free shipping
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Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot