Shop hard water testing

Sponsored
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$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
414
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
414
$9.99
$12.97
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips
Amazon.com
5K+
22% off
$9.99
$12.97
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips
Amazon.com
5K+
$24.99
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
Amazon.com
2K+
$24.99
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
Amazon.com
2K+
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
1K+
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
1K+
$21.65
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
$155.00
Hach Hardness (Total & Calcium) Test Kit Model HA-4P 145700
Core & Main
$155.00
Hach Hardness (Total & Calcium) Test Kit Model HA-4P 145700
Core & Main
$330.00
Hach Water Hardness Vial Test: 20 To 350 Mg/L As Caco5 To 100 Mg/L Ca3 To 50 Mg/L Mg, TNT869, 1 Model: TNT869
Grainger
$330.00
Hach Water Hardness Vial Test: 20 To 350 Mg/L As Caco5 To 100 Mg/L Ca3 To 50 Mg/L Mg, TNT869, 1 Model: TNT869
Grainger
$40.99
Hach Sterichek Water Hardness Test Strips - Sterichek Water Hardness Test Strips, 50 Strips / Bottle - 24-2146-0 - 1 Each / Each
Grayline Medical
$40.99
Hach Sterichek Water Hardness Test Strips - Sterichek Water Hardness Test Strips, 50 Strips / Bottle - 24-2146-0 - 1 Each / Each
Grayline Medical
$15.11
Industrial Test Systems Test Strips: 0 To 1,000 Ppm Total Hardness, Total Hardness, 30 Tests [PK/30] Model: 481108
Grainger
476
$15.11
Industrial Test Systems Test Strips: 0 To 1,000 Ppm Total Hardness, Total Hardness, 30 Tests [PK/30] Model: 481108
Grainger
476
$9,367.80
Online Water Total Hardness Analyzer
Sper Direct
$9,367.80
Online Water Total Hardness Analyzer
Sper Direct
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
168
Free shipping
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
168
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
2
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
2
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US
$115.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 5-25 °D, For Use With Mquant Stripscan App, Water Hardness 6-31 °E, Water Hardness 9-45 °F
Sigma-Aldrich
$115.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 5-25 °D, For Use With Mquant Stripscan App, Water Hardness 6-31 °E, Water Hardness 9-45 °F
Sigma-Aldrich
$56.98
$76.92
RCYAGO TDS Meter Water Quality Tester, 4-In-1 Smart Bluetooth TDS/EC/RH/Temp Meter For Water Hydroponics Aquarium
vyroqi.com
25% off
$56.98
$76.92
RCYAGO TDS Meter Water Quality Tester, 4-In-1 Smart Bluetooth TDS/EC/RH/Temp Meter For Water Hydroponics Aquarium
vyroqi.com
$202.00
Supelco Total Hardness Cell Test, Photometric, 5-215 Mg/L (Ca), Water Hardness 0.7-30.1 °D, Water Hardness 0.9-37.6 °E, Water Hardness 1.2-53.7 °F
Sigma-Aldrich
$202.00
Supelco Total Hardness Cell Test, Photometric, 5-215 Mg/L (Ca), Water Hardness 0.7-30.1 °D, Water Hardness 0.9-37.6 °E, Water Hardness 1.2-53.7 °F
Sigma-Aldrich
$76.91
Total Hardness Test Kit -- 1 Drop = 0.5 Or 10 Ppm As Caco3 / 25Ml
Thomas Scientific
$76.91
Total Hardness Test Kit -- 1 Drop = 0.5 Or 10 Ppm As Caco3 / 25Ml
Thomas Scientific
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$25.89
Pentair Total Water Hardness Testing Parameter Specialty Test Kit R151276
PoolZoom.com
19
$25.89
Pentair Total Water Hardness Testing Parameter Specialty Test Kit R151276
PoolZoom.com
19
$12.50
Pro Lab Instant Results Total Water Quality Test Kit
iverybers.com
102
Free shipping
$12.50
Pro Lab Instant Results Total Water Quality Test Kit
iverybers.com
102
$13.69
Water Hardness Tester
Thomas Scientific
$13.69
Water Hardness Tester
Thomas Scientific
$332.20
Water Quality Meter Kit, Item 850086 - Complete Water Meter Kit With Probes
Sper Direct
$332.20
Water Quality Meter Kit, Item 850086 - Complete Water Meter Kit With Probes
Sper Direct
$35.05
Pentair Everpure H2O Test Express Water Test Kit
IceMachinesPlus_2024
$35.05
Pentair Everpure H2O Test Express Water Test Kit
IceMachinesPlus_2024
$75.99
$83.99
Tilswall Wifi 7In1 Water Quality Tester Multi-Parameter Water Analyzer
Tilswall US
$75.99
$83.99
Tilswall Wifi 7In1 Water Quality Tester Multi-Parameter Water Analyzer
Tilswall US
$64.89
LAMOTTE Water Testing Kit, Hardness, 0 To 200 PPM, 4482-LI-02
Zoro.com
$64.89
LAMOTTE Water Testing Kit, Hardness, 0 To 200 PPM, 4482-LI-02
Zoro.com
$169.00
$199.00
Water Test Kit + Tannins
SpringWell Water Filtration Systems
15% off
$169.00
$199.00
Water Test Kit + Tannins
SpringWell Water Filtration Systems
$71.99
$107.99
Hach - 183701 - Hardness, Iron, And Ph Test Kit, Model HA-62A
hardclikk.com
33% off
$71.99
$107.99
Hach - 183701 - Hardness, Iron, And Ph Test Kit, Model HA-62A
hardclikk.com
$40.29
Taylor Drop Test, Hardness (Calcium), EDTA K-1770
PoolZoom.com
1
$40.29
Taylor Drop Test, Hardness (Calcium), EDTA K-1770
PoolZoom.com
1
$23.09
Sensafe (480015) '5-Way' 5In1 Waterworks Water Quality Testing Test Strips
Isopure Water
$23.09
Sensafe (480015) '5-Way' 5In1 Waterworks Water Quality Testing Test Strips
Isopure Water
$7.99
$9.99
High Accuracy TDS Meter Digital Water Tester 0-9990Ppm TDS EC LCD Water Purity PPM Aquarium Filter
Banggood
20% off
$7.99
$9.99
High Accuracy TDS Meter Digital Water Tester 0-9990Ppm TDS EC LCD Water Purity PPM Aquarium Filter
Banggood
$69.98
$98.67
Hach - 223002 - Chlorine, Hardness, Iron, And Ph Test Kit, Model CN-39WR
vyroqi.com
29% off
$69.98
$98.67
Hach - 223002 - Chlorine, Hardness, Iron, And Ph Test Kit, Model CN-39WR
vyroqi.com
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Shop hard water testing

Sponsored
About our ads
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
2
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US
$115.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 5-25 °D, For Use With Mquant Stripscan App, Water Hardness 6-31 °E, Water Hardness 9-45 °F
Sigma-Aldrich
$115.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 5-25 °D, For Use With Mquant Stripscan App, Water Hardness 6-31 °E, Water Hardness 9-45 °F
Sigma-Aldrich
$56.98
$76.92
RCYAGO TDS Meter Water Quality Tester, 4-In-1 Smart Bluetooth TDS/EC/RH/Temp Meter For Water Hydroponics Aquarium
vyroqi.com
25% off
$56.98
$76.92
RCYAGO TDS Meter Water Quality Tester, 4-In-1 Smart Bluetooth TDS/EC/RH/Temp Meter For Water Hydroponics Aquarium
vyroqi.com
$202.00
Supelco Total Hardness Cell Test, Photometric, 5-215 Mg/L (Ca), Water Hardness 0.7-30.1 °D, Water Hardness 0.9-37.6 °E, Water Hardness 1.2-53.7 °F
Sigma-Aldrich
$202.00
Supelco Total Hardness Cell Test, Photometric, 5-215 Mg/L (Ca), Water Hardness 0.7-30.1 °D, Water Hardness 0.9-37.6 °E, Water Hardness 1.2-53.7 °F
Sigma-Aldrich
$76.91
Total Hardness Test Kit -- 1 Drop = 0.5 Or 10 Ppm As Caco3 / 25Ml
Thomas Scientific
$76.91
Total Hardness Test Kit -- 1 Drop = 0.5 Or 10 Ppm As Caco3 / 25Ml
Thomas Scientific
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$25.89
Pentair Total Water Hardness Testing Parameter Specialty Test Kit R151276
PoolZoom.com
19
$25.89
Pentair Total Water Hardness Testing Parameter Specialty Test Kit R151276
PoolZoom.com
$12.50
Pro Lab Instant Results Total Water Quality Test Kit
iverybers.com
102
Free shipping
$12.50
Pro Lab Instant Results Total Water Quality Test Kit
iverybers.com
$13.69
Water Hardness Tester
Thomas Scientific
$13.69
Water Hardness Tester
Thomas Scientific
$332.20
Water Quality Meter Kit, Item 850086 - Complete Water Meter Kit With Probes
Sper Direct
$332.20
Water Quality Meter Kit, Item 850086 - Complete Water Meter Kit With Probes
Sper Direct
$35.05
Pentair Everpure H2O Test Express Water Test Kit
IceMachinesPlus_2024
$35.05
Pentair Everpure H2O Test Express Water Test Kit
IceMachinesPlus_2024
$75.99
$83.99
Tilswall Wifi 7In1 Water Quality Tester Multi-Parameter Water Analyzer
Tilswall US
$75.99
$83.99
Tilswall Wifi 7In1 Water Quality Tester Multi-Parameter Water Analyzer
Tilswall US

Shop hard water testing

Sponsored
About our ads
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
414
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
414
$9.99
$12.97
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips
Amazon.com
5K+
22% off
$9.99
$12.97
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips
Amazon.com
5K+
$24.99
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
Amazon.com
2K+
$24.99
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
Amazon.com
2K+
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
1K+
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
1K+
$21.65
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
$155.00
Hach Hardness (Total & Calcium) Test Kit Model HA-4P 145700
Core & Main
$155.00
Hach Hardness (Total & Calcium) Test Kit Model HA-4P 145700
Core & Main
$330.00
Hach Water Hardness Vial Test: 20 To 350 Mg/L As Caco5 To 100 Mg/L Ca3 To 50 Mg/L Mg, TNT869, 1 Model: TNT869
Grainger
$330.00
Hach Water Hardness Vial Test: 20 To 350 Mg/L As Caco5 To 100 Mg/L Ca3 To 50 Mg/L Mg, TNT869, 1 Model: TNT869
Grainger
$40.99
Hach Sterichek Water Hardness Test Strips - Sterichek Water Hardness Test Strips, 50 Strips / Bottle - 24-2146-0 - 1 Each / Each
Grayline Medical
$40.99
Hach Sterichek Water Hardness Test Strips - Sterichek Water Hardness Test Strips, 50 Strips / Bottle - 24-2146-0 - 1 Each / Each
Grayline Medical
$15.11
Industrial Test Systems Test Strips: 0 To 1,000 Ppm Total Hardness, Total Hardness, 30 Tests [PK/30] Model: 481108
Grainger
476
$15.11
Industrial Test Systems Test Strips: 0 To 1,000 Ppm Total Hardness, Total Hardness, 30 Tests [PK/30] Model: 481108
Grainger
476
$9,367.80
Online Water Total Hardness Analyzer
Sper Direct
$9,367.80
Online Water Total Hardness Analyzer
Sper Direct
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
168
Free shipping
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
168
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
2
$44.19
Lamotte Total Hardness Test Kit: Lab, 0-200 Ppm, Reagent, 1 Model: R-4482-LI-01
Grainger
2
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$86.98
Total & Calcium Hardness Test Kit
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$59.00
Everpure EV433940 Water Test Kit Tests Water Hardness
IceMachinesPlus_2024
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$106.00
Supelco Total Hardness Test, Colorimetric, Water Hardness 3-21 °D, Water Hardness 4-26 °E, Water Hardness 5-37 °F
Sigma-Aldrich
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$45.99
Healthmark Aquatest Water Quality Tests - Quality 3-In-1 Test Strip, H2O Quality - AT101 - 25 Each / 1 Box / Case
Grayline Medical
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US
$99.99
$105.99
Tilswall Water Quality Tester, 8 in 1 Water Quality Detector
Tilswall US