Shop water hardness test strips

Sponsored
About our ads
$9.95
Total Hardness Testing Strips - 5-Pack
US Water Systems
$9.95
Total Hardness Testing Strips - 5-Pack
US Water Systems
$9.49
$11.86
Total Hardness Testing Strips - 50Pk
US Water Systems
19% off
$9.49
$11.86
Total Hardness Testing Strips - 50Pk
US Water Systems
$9.99
$14.99
Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness - 150
Amazon.com
2K+
33% off
$9.99
$14.99
Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness - 150
Amazon.com
2K+
$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+
$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
$26.99
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
490
$24.99
$26.99
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
490
$9.17
PRO-LAB Water Quality Test Kit Water Test Kit | WQ105
Lowe's
$9.17
PRO-LAB Water Quality Test Kit Water Test Kit | WQ105
Lowe's
$10.95
$13.69
Consumer Hardness Test Kit For Water Treatment | 23052
US Water Systems
20% off
$10.95
$13.69
Consumer Hardness Test Kit For Water Treatment | 23052
US Water Systems
$17.47
Ispring 3-Button Digital Water Quality And Hardness Test Meter Multi-Use Water Test Kit | TDS3
Lowe's
$17.47
Ispring 3-Button Digital Water Quality And Hardness Test Meter Multi-Use Water Test Kit | TDS3
Lowe's
$9.99
JED Pool Tools Test Strips 50 Ct
Ace Hardware
36
$9.99
JED Pool Tools Test Strips 50 Ct
Ace Hardware
36
$8.99
$10.99
Miele Water Hardness Test Strip
Evacuumstore
18% off
$8.99
$10.99
Miele Water Hardness Test Strip
Evacuumstore
$9.15
GJX 100Pcs Water Hardness Test Kit Fast And Accurate Hard Water Quality Testing Strips For Water Softener Dishwasher Well Spa Pool Etc. 0-425 PPM
Walmart
$9.15
GJX 100Pcs Water Hardness Test Kit Fast And Accurate Hard Water Quality Testing Strips For Water Softener Dishwasher Well Spa Pool Etc. 0-425 PPM
Walmart
$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
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
19
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
19
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
Free shipping
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
Free shipping
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas
$13.00
Safe Home Basic 120 Water Test Kit Multi-Use Water Test Kit | SH-GH-BASDIY120
Lowe's
$13.00
Safe Home Basic 120 Water Test Kit Multi-Use Water Test Kit | SH-GH-BASDIY120
Lowe's
$21.20
ITS Water Quality Test Strips, Total Hardness, 0 To 425 Ppm, 50/Bottle | Cole-Parmer
Cole-Parmer
$21.20
ITS Water Quality Test Strips, Total Hardness, 0 To 425 Ppm, 50/Bottle | Cole-Parmer
Cole-Parmer
$21.35
Insta-Test Strips, Hardness, Low Range, Vial 50
Thomas Scientific
52
$21.35
Insta-Test Strips, Hardness, Low Range, Vial 50
Thomas Scientific
52
$508.00
Hach Total Hardness Test Strips 0-425 Mg/L 1000 Tests Individually Wrapped 2793828
Core & Main
$508.00
Hach Total Hardness Test Strips 0-425 Mg/L 1000 Tests Individually Wrapped 2793828
Core & Main
$15.99
Aquachek Total Hardness Test Strips - 25 Strips
Pool Geek
$15.99
Aquachek Total Hardness Test Strips - 25 Strips
Pool Geek
$20.50
$37.70
Everpure 6500-50 Test Strips Pack Dip And Read For Water Quality Monitoring | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
45% off
$20.50
$37.70
Everpure 6500-50 Test Strips Pack Dip And Read For Water Quality Monitoring | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
$6.99
Aquachek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips For Ph, Bromine, Total Alkalinity, And Total Hardness - Quick And Accurate Results 521252A
PoolZoom.com
2K+
$6.99
Aquachek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips For Ph, Bromine, Total Alkalinity, And Total Hardness - Quick And Accurate Results 521252A
PoolZoom.com
2K+
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
53
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
53
$23.70
Lamotte Insta-Test Hardness Test Strips, 0 To 180 Ppm | Cole-Parmer
Cole-Parmer
52
$23.70
Lamotte Insta-Test Hardness Test Strips, 0 To 180 Ppm | Cole-Parmer
Cole-Parmer
52
$59.99
KTX-648403 Six-In-One Aquarium Water Quality Testing Strips For Total Hardness, Nitrate, Nitrite, Chlorine, Carbonates, And Ph
Latomart.com
$59.99
KTX-648403 Six-In-One Aquarium Water Quality Testing Strips For Total Hardness, Nitrate, Nitrite, Chlorine, Carbonates, And Ph
Latomart.com
$133.80
EMD Millipore 10046-1 Total Hardness Test Strips, 90 To 450 Ppm | Cole-Parmer
Cole-Parmer
$133.80
EMD Millipore 10046-1 Total Hardness Test Strips, 90 To 450 Ppm | Cole-Parmer
Cole-Parmer
$16.09
Aquachek Total Hardness Test Strips 561220
Pool Supply Unlimited
$16.09
Aquachek Total Hardness Test Strips 561220
Pool Supply Unlimited
$4.24
Ninja Water Hardness Test Strip | | Sharkninja 582Uo600
Sharkclean
Free shipping
$4.24
Ninja Water Hardness Test Strip | | Sharkninja 582Uo600
Sharkclean
Free shipping
$31.84
$44.57
Hach 145300 Total Hardness Test Kit, Model 5-B
uptownrenos.com
Free shipping
28% off
$31.84
$44.57
Hach 145300 Total Hardness Test Kit, Model 5-B
uptownrenos.com
Free shipping
$33.30
Lamotte 2981, Insta-TEST 0 - 180 Ppm Hardness Test Strip
MegaDepot
52
$33.30
Lamotte 2981, Insta-TEST 0 - 180 Ppm Hardness Test Strip
MegaDepot
52
$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
$14.99
Aquachek Hardness/Cyanuric Acid/Tds, 25 Test Strips For Pools
Pool Supplies Superstore
$14.99
Aquachek Hardness/Cyanuric Acid/Tds, 25 Test Strips For Pools
Pool Supplies Superstore
$14.95
Hach Orange Total Hardness Test Strip 561220
DkHardware.com
$14.95
Hach Orange Total Hardness Test Strip 561220
DkHardware.com

Shop water hardness test strips

Sponsored
About our ads
$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
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
19
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
Free shipping
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas
$13.00
Safe Home Basic 120 Water Test Kit Multi-Use Water Test Kit | SH-GH-BASDIY120
Lowe's
$13.00
Safe Home Basic 120 Water Test Kit Multi-Use Water Test Kit | SH-GH-BASDIY120
Lowe's
$21.20
ITS Water Quality Test Strips, Total Hardness, 0 To 425 Ppm, 50/Bottle | Cole-Parmer
Cole-Parmer
$21.20
ITS Water Quality Test Strips, Total Hardness, 0 To 425 Ppm, 50/Bottle | Cole-Parmer
Cole-Parmer
$21.35
Insta-Test Strips, Hardness, Low Range, Vial 50
Thomas Scientific
52
$21.35
Insta-Test Strips, Hardness, Low Range, Vial 50
Thomas Scientific
$508.00
Hach Total Hardness Test Strips 0-425 Mg/L 1000 Tests Individually Wrapped 2793828
Core & Main
$508.00
Hach Total Hardness Test Strips 0-425 Mg/L 1000 Tests Individually Wrapped 2793828
Core & Main
$15.99
Aquachek Total Hardness Test Strips - 25 Strips
Pool Geek
$15.99
Aquachek Total Hardness Test Strips - 25 Strips
Pool Geek
$20.50
$37.70
Everpure 6500-50 Test Strips Pack Dip And Read For Water Quality Monitoring | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
45% off
$20.50
$37.70
Everpure 6500-50 Test Strips Pack Dip And Read For Water Quality Monitoring | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
$6.99
Aquachek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips For Ph, Bromine, Total Alkalinity, And Total Hardness - Quick And Accurate Results 521252A
PoolZoom.com
2K+
$6.99
Aquachek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips For Ph, Bromine, Total Alkalinity, And Total Hardness - Quick And Accurate Results 521252A
PoolZoom.com
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
53
$34.25
Hach Total Hardness Water Test Kit Model 5-B 145300
Core & Main
$23.70
Lamotte Insta-Test Hardness Test Strips, 0 To 180 Ppm | Cole-Parmer
Cole-Parmer
52
$23.70
Lamotte Insta-Test Hardness Test Strips, 0 To 180 Ppm | Cole-Parmer
Cole-Parmer
$59.99
KTX-648403 Six-In-One Aquarium Water Quality Testing Strips For Total Hardness, Nitrate, Nitrite, Chlorine, Carbonates, And Ph
Latomart.com
$59.99
KTX-648403 Six-In-One Aquarium Water Quality Testing Strips For Total Hardness, Nitrate, Nitrite, Chlorine, Carbonates, And Ph
Latomart.com
$133.80
EMD Millipore 10046-1 Total Hardness Test Strips, 90 To 450 Ppm | Cole-Parmer
Cole-Parmer
$133.80
EMD Millipore 10046-1 Total Hardness Test Strips, 90 To 450 Ppm | Cole-Parmer
Cole-Parmer

Shop water hardness test strips

Sponsored
About our ads
$9.95
Total Hardness Testing Strips - 5-Pack
US Water Systems
$9.95
Total Hardness Testing Strips - 5-Pack
US Water Systems
$9.49
$11.86
Total Hardness Testing Strips - 50Pk
US Water Systems
19% off
$9.49
$11.86
Total Hardness Testing Strips - 50Pk
US Water Systems
$9.99
$14.99
Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness - 150
Amazon.com
2K+
33% off
$9.99
$14.99
Water Hardness Test Kit - Quick And Accurate Water Hardness Test Strips - Hard Water Test Kit With Ebook - Ultimate Test Kit For Water Hardness - 150
Amazon.com
2K+
$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+
$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
$26.99
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
490
$24.99
$26.99
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
490
$9.17
PRO-LAB Water Quality Test Kit Water Test Kit | WQ105
Lowe's
$9.17
PRO-LAB Water Quality Test Kit Water Test Kit | WQ105
Lowe's
$10.95
$13.69
Consumer Hardness Test Kit For Water Treatment | 23052
US Water Systems
20% off
$10.95
$13.69
Consumer Hardness Test Kit For Water Treatment | 23052
US Water Systems
$17.47
Ispring 3-Button Digital Water Quality And Hardness Test Meter Multi-Use Water Test Kit | TDS3
Lowe's
$17.47
Ispring 3-Button Digital Water Quality And Hardness Test Meter Multi-Use Water Test Kit | TDS3
Lowe's
$9.99
JED Pool Tools Test Strips 50 Ct
Ace Hardware
36
$9.99
JED Pool Tools Test Strips 50 Ct
Ace Hardware
36
$8.99
$10.99
Miele Water Hardness Test Strip
Evacuumstore
18% off
$8.99
$10.99
Miele Water Hardness Test Strip
Evacuumstore
$9.15
GJX 100Pcs Water Hardness Test Kit Fast And Accurate Hard Water Quality Testing Strips For Water Softener Dishwasher Well Spa Pool Etc. 0-425 PPM
Walmart
$9.15
GJX 100Pcs Water Hardness Test Kit Fast And Accurate Hard Water Quality Testing Strips For Water Softener Dishwasher Well Spa Pool Etc. 0-425 PPM
Walmart
$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
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$10.00
Clive Water Hardness Test Strips - Pack Of 10
Clive Coffee GMC
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
19
$31.97
Rainbow Total Water Hardness Test Kit - R151276
Pool Web
19
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
Free shipping
$9.72
100 Pcs Water Total Hardness Test Strips Quick And Easy Testing Kit 0-425 PPM
Walmart
Free shipping
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$64.99
KTX-195923 Six-In-One Aquarium Water Quality Test Strips For Hardness, Nitrate, Nitrite, Chlorine, Carbonates, Ph 2025 Model
Latomart.com
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$11.16
Fancy 100Pcs Water Hardness Test Strips, Quick And Easy Water Softener Test Strips, 0-425Ppm
Walmart
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas
$13.68
Water Testing, Test Strips, Aquacheck, Cyanuric Acid, Free Chlorine, Bromine, Ph, Alk, Hardness,& Total Chlorine: 541640A
PartsForSpas