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Sponsored
$9.99
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
Amazon.com
5K+
$9.99
Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
Amazon.com
5K+
$23.99
New 21 in 1 Water Testing Kits For Drinking Water 125 Strips - Home & Well Water Testing Kit For Hardness, Lead, Chlorine, Ph & More - Hard Water
Amazon.com
108
$23.99
New 21 in 1 Water Testing Kits For Drinking Water 125 Strips - Home & Well Water Testing Kit For Hardness, Lead, Chlorine, Ph & More - Hard Water
Amazon.com
108
$187.00
Hach 202300 Hardness And Iron Color Disc Test Kit, Model HA-77
Amazon.com
29
Free shipping
$187.00
Hach 202300 Hardness And Iron Color Disc Test Kit, Model HA-77
Amazon.com
29
$99.99
Taylor 2000 Service Complete Salt Water Test Kit, Alkalinity/Chlorine (High Range), FAS-DPD/CYA/Hardness/Nacl/Ph
Doheny's
132
$99.99
Taylor 2000 Service Complete Salt Water Test Kit, Alkalinity/Chlorine (High Range), FAS-DPD/CYA/Hardness/Nacl/Ph
Doheny's
132
$20.99
$32.00
Malibu C Hard Water Wellness Treatment Kit
Walmart
25
34% off
$20.99
$32.00
Malibu C Hard Water Wellness Treatment Kit
Walmart
25
$1,730.00
Whole House Water Filter System - 7+ Bathrooms
SpringWell Water Filtration Systems
51% off
$1,730.00
Whole House Water Filter System - 7+ Bathrooms
SpringWell Water Filtration Systems
$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
$129.99
Taylor 2000 Service Complete Test Kit, Free & Combined Chlorine, Ph, Total Alkalinity, Cyanuric Acid, And Calcium Hardness (Hi Range) For Pools
Doheny's
1
$129.99
Taylor 2000 Service Complete Test Kit, Free & Combined Chlorine, Ph, Total Alkalinity, Cyanuric Acid, And Calcium Hardness (Hi Range) For Pools
Doheny's
1
$4,465.00
ULTRA Whole House Well Water Filter Salt-Free Conditioner System Combo - 1-3 Bathrooms
SpringWell Water Filtration Systems
52% off
$4,465.00
ULTRA Whole House Well Water Filter Salt-Free Conditioner System Combo - 1-3 Bathrooms
SpringWell Water Filtration Systems
$33.25
Hach Total Hardness Test Kit Model 5-B 145300
Core & Main
1K+
$33.25
Hach Total Hardness Test Kit Model 5-B 145300
Core & Main
1K+
$1,968.32
PRO+AQUA ELITE Bundle 20-GPM Multi-Method Hard Water Whole House Water Filtration System In Black | BNDL-WEL
Lowe's
$1,968.32
PRO+AQUA ELITE Bundle 20-GPM Multi-Method Hard Water Whole House Water Filtration System In Black | BNDL-WEL
Lowe's
$110.00
Hach Total Hardness Test Kit Model HA-71A 145201
Core & Main
$110.00
Hach Total Hardness Test Kit Model HA-71A 145201
Core & Main
$19.99
17 in 1 Water Testing Kits For Drinking Water, 125 Strips Water Hardness Test Kit, Tap And Well Water Test Kit For Lead, Iron, Fluoride, Copper, PH
Amazon.com
113
$19.99
17 in 1 Water Testing Kits For Drinking Water, 125 Strips Water Hardness Test Kit, Tap And Well Water Test Kit For Lead, Iron, Fluoride, Copper, PH
Amazon.com
113
$32.99
Watersafe The Original Water Testing Kit For Drinking Water, Well And Tap Water, Sensitive Lead In Water Test, Bacteria, Hardness, Ph, Nitrates,
Amazon.com
2K+
$32.99
Watersafe The Original Water Testing Kit For Drinking Water, Well And Tap Water, Sensitive Lead In Water Test, Bacteria, Hardness, Ph, Nitrates,
Amazon.com
2K+
$182.00
Hach Hardness & Iron Color Disc Test Kit Model HA-77 202300
Core & Main
29
$182.00
Hach Hardness & Iron Color Disc Test Kit Model HA-77 202300
Core & Main
29
$50.95
Aquahomegroup Luxury Filtered Shower Head Set 20+3 Stage Shower Filter For Hard Water Removes Chlorine And Harmful Substances - Showerhead Filter
Amazon.com
17K+
Free shipping
$50.95
Aquahomegroup Luxury Filtered Shower Head Set 20+3 Stage Shower Filter For Hard Water Removes Chlorine And Harmful Substances - Showerhead Filter
Amazon.com
17K+
$16.99
Water Testing Kits For Drinking Water: 125 Strips 16 in 1 Well And Drinking Water Test Kit, TESPERT Water Test Strips With Hardness, Ph, Lead, Iron,
Amazon.com
3K+
$16.99
Water Testing Kits For Drinking Water: 125 Strips 16 in 1 Well And Drinking Water Test Kit, TESPERT Water Test Strips With Hardness, Ph, Lead, Iron,
Amazon.com
3K+
$23.39
EASYTEST 20 in 1 Drinking Water Test Kit - Well Water Testing Kit - Water Test Strip For House Water For Ph, Hardness, Chlorine, Lead, Iron,
Amazon.com
15
$23.39
EASYTEST 20 in 1 Drinking Water Test Kit - Well Water Testing Kit - Water Test Strip For House Water For Ph, Hardness, Chlorine, Lead, Iron,
Amazon.com
15
$2,297.00
Aquasana Whole House Water Filter System - Water Softener Alternative - Salt-Free Descaler - Home Water Filtration - Low Maintenance Sediment
Amazon.com
560
Free shipping
$2,297.00
Aquasana Whole House Water Filter System - Water Softener Alternative - Salt-Free Descaler - Home Water Filtration - Low Maintenance Sediment
Amazon.com
560
$49.99
Matte Black Shower Head Filter With 6 Replacement Cartridges - 20 Stage Water Softener For Hard Water - Reduce Chlorine And Fluoride - Ideal For
Amazon.com
714
Free shipping
$49.99
Matte Black Shower Head Filter With 6 Replacement Cartridges - 20 Stage Water Softener For Hard Water - Reduce Chlorine And Fluoride - Ideal For
Amazon.com
714
$24.99
Bestprod 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
Bestprod 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+
$70.99
Taylor K2005 High Range Swimming Pool Total And Free Chlorine Bromine Alkalinity Calcium Hardness Base And Acid Demand Ph DP Test Kit
Amazon.com
3K+
Free shipping
$70.99
Taylor K2005 High Range Swimming Pool Total And Free Chlorine Bromine Alkalinity Calcium Hardness Base And Acid Demand Ph DP Test Kit
Amazon.com
3K+
$260.93
Camco Tastepure Portable Compact Hard Water Softener Kit For RV & Boat
Walmart
Free shipping
$260.93
Camco Tastepure Portable Compact Hard Water Softener Kit For RV & Boat
Walmart
Free shipping
$179.99
Scalewatcher Nano Hard Water Solution
Walmart
48
$179.99
Scalewatcher Nano Hard Water Solution
Walmart
48
$37.95
EVERGLOW 2-Pack Filtered Shower Heads For Hard Water With 2 Vitamin C Cartridges | Removes Chlorine, Heavy Metals, And Toxins | Water Softener For
Amazon.com
2
Free shipping
$37.95
EVERGLOW 2-Pack Filtered Shower Heads For Hard Water With 2 Vitamin C Cartridges | Removes Chlorine, Heavy Metals, And Toxins | Water Softener For
Amazon.com
2
$1,748.00
Aquasana Whole House Water Filter System - Salt-Free Descaler - Carbon & KDF Home Water Filtration - Reduces Sediment & 97% Of Chlorine - Rhino
Amazon.com
Free shipping
$1,748.00
Aquasana Whole House Water Filter System - Salt-Free Descaler - Carbon & KDF Home Water Filtration - Reduces Sediment & 97% Of Chlorine - Rhino
Amazon.com
Free shipping
$11.99
Hydrion Water Hardness Test Kit
Level 7 Chemical
15-day returns (most items)
$11.99
Hydrion Water Hardness Test Kit
Level 7 Chemical
15-day returns
$636.30
Scalewatcher 4 Star Hard Water Solution
Walmart
Free shipping
$636.30
Scalewatcher 4 Star Hard Water Solution
Walmart
Free shipping
$68.96
Lamotte Total Hardness Water Test Kit: Total Hardness, 50 Tests, 4482-DR-LI-01 Model: 4482-DR-LI-01
Grainger
1
$68.96
Lamotte Total Hardness Water Test Kit: Total Hardness, 50 Tests, 4482-DR-LI-01 Model: 4482-DR-LI-01
Grainger
1
$10.14
Fphyu Upgraded Shower Filter, Shower Filter Head For Hard Water, 20-Stage Shower Head Filter Removal 99% Of Chlorine, Fluoride, Heavy Metals, Iron,
Amazon.com
$10.14
Fphyu Upgraded Shower Filter, Shower Filter Head For Hard Water, 20-Stage Shower Head Filter Removal 99% Of Chlorine, Fluoride, Heavy Metals, Iron,
Amazon.com
$42.00
Hardness Test Kit Pro II
Clean Water Store
$42.00
Hardness Test Kit Pro II
Clean Water Store
$100.93
Lamotte Calcium, Magnesium And Total Hardness Water Test Kit: Handbook, 50 Tests, 1 Pieces Model: 4824-DR-LT-01
Grainger
$100.93
Lamotte Calcium, Magnesium And Total Hardness Water Test Kit: Handbook, 50 Tests, 1 Pieces Model: 4824-DR-LT-01
Grainger
$67.20
Lamotte Total Hardness Water Quality Test Kit: Total Hardness, 50 Tests, 4482-LI-02 Model: 4482-LI-02
Grainger
$67.20
Lamotte Total Hardness Water Quality Test Kit: Total Hardness, 50 Tests, 4482-LI-02 Model: 4482-LI-02
Grainger
$74.27
Lovibond Total Hardness Water Test Kit: Total Hardness, Reagents/Sample Bottle, 30 Tests, 5 Pieces Model: 414230
Grainger
$74.27
Lovibond Total Hardness Water Test Kit: Total Hardness, Reagents/Sample Bottle, 30 Tests, 5 Pieces Model: 414230
Grainger
$74.27
Lovibond Calcium Hardness Water Test Kit: Calcium Hardness, Reagents/Sample Bottle, 30 Tests, 414160 Model: 414160
Grainger
$74.27
Lovibond Calcium Hardness Water Test Kit: Calcium Hardness, Reagents/Sample Bottle, 30 Tests, 414160 Model: 414160
Grainger
$3,725.00
Water Filter And Salt Based Water Softener System - 7+ Bathrooms
SpringWell Water Filtration Systems
45% off
$3,725.00
Water Filter And Salt Based Water Softener System - 7+ Bathrooms
SpringWell Water Filtration Systems
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    Shop hard-water kit

    Sponsored
    $9.99
    Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
    Amazon.com
    5K+
    More than 560 people from Bing viewed this product in the last 90 days
    $9.99
    Varify Water Hardness Test Kit - Water Testing Kit For Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test
    Amazon.com
    5K+
    $23.99
    New 21 in 1 Water Testing Kits For Drinking Water 125 Strips - Home & Well Water Testing Kit For Hardness, Lead, Chlorine, Ph & More - Hard Water
    Amazon.com
    108
    $23.99
    New 21 in 1 Water Testing Kits For Drinking Water 125 Strips - Home & Well Water Testing Kit For Hardness, Lead, Chlorine, Ph & More - Hard Water
    Amazon.com
    108
    $187.00
    Hach 202300 Hardness And Iron Color Disc Test Kit, Model HA-77
    Amazon.com
    29
    Free shipping
    $187.00
    Hach 202300 Hardness And Iron Color Disc Test Kit, Model HA-77
    Amazon.com
    29
    $99.99
    Taylor 2000 Service Complete Salt Water Test Kit, Alkalinity/Chlorine (High Range), FAS-DPD/CYA/Hardness/Nacl/Ph
    Doheny's
    132
    $99.99
    Taylor 2000 Service Complete Salt Water Test Kit, Alkalinity/Chlorine (High Range), FAS-DPD/CYA/Hardness/Nacl/Ph
    Doheny's
    132
    $20.99
    $32.00
    Malibu C Hard Water Wellness Treatment Kit
    Walmart
    25
    34% off
    $20.99
    $32.00
    Malibu C Hard Water Wellness Treatment Kit
    Walmart
    25
    $1,730.00
    Whole House Water Filter System - 7+ Bathrooms
    SpringWell Water Filtration Systems
    51% off
    $1,730.00
    Whole House Water Filter System - 7+ Bathrooms
    SpringWell Water Filtration Systems
    $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
    $129.99
    Taylor 2000 Service Complete Test Kit, Free & Combined Chlorine, Ph, Total Alkalinity, Cyanuric Acid, And Calcium Hardness (Hi Range) For Pools
    Doheny's
    1
    $129.99
    Taylor 2000 Service Complete Test Kit, Free & Combined Chlorine, Ph, Total Alkalinity, Cyanuric Acid, And Calcium Hardness (Hi Range) For Pools
    Doheny's
    1
    $4,465.00
    ULTRA Whole House Well Water Filter Salt-Free Conditioner System Combo - 1-3 Bathrooms
    SpringWell Water Filtration Systems
    More than 570 people from Bing viewed this product in the last 90 days
    52% off
    $4,465.00
    ULTRA Whole House Well Water Filter Salt-Free Conditioner System Combo - 1-3 Bathrooms
    SpringWell Water Filtration Systems
    570+ viewed
    $33.25
    Hach Total Hardness Test Kit Model 5-B 145300
    Core & Main
    1K+
    $33.25
    Hach Total Hardness Test Kit Model 5-B 145300
    Core & Main
    1K+
    $1,968.32
    PRO+AQUA ELITE Bundle 20-GPM Multi-Method Hard Water Whole House Water Filtration System In Black | BNDL-WEL
    Lowe's
    $1,968.32
    PRO+AQUA ELITE Bundle 20-GPM Multi-Method Hard Water Whole House Water Filtration System In Black | BNDL-WEL
    Lowe's
    $110.00
    Hach Total Hardness Test Kit Model HA-71A 145201
    Core & Main
    $110.00
    Hach Total Hardness Test Kit Model HA-71A 145201
    Core & Main
    $19.99
    17 in 1 Water Testing Kits For Drinking Water, 125 Strips Water Hardness Test Kit, Tap And Well Water Test Kit For Lead, Iron, Fluoride, Copper, PH
    Amazon.com
    113
    $19.99
    17 in 1 Water Testing Kits For Drinking Water, 125 Strips Water Hardness Test Kit, Tap And Well Water Test Kit For Lead, Iron, Fluoride, Copper, PH
    Amazon.com
    113
    $32.99
    Watersafe The Original Water Testing Kit For Drinking Water, Well And Tap Water, Sensitive Lead In Water Test, Bacteria, Hardness, Ph, Nitrates,
    Amazon.com
    2K+
    $32.99
    Watersafe The Original Water Testing Kit For Drinking Water, Well And Tap Water, Sensitive Lead In Water Test, Bacteria, Hardness, Ph, Nitrates,
    Amazon.com
    2K+
    $182.00
    Hach Hardness & Iron Color Disc Test Kit Model HA-77 202300
    Core & Main
    29
    $182.00
    Hach Hardness & Iron Color Disc Test Kit Model HA-77 202300
    Core & Main
    29
    $50.95
    Aquahomegroup Luxury Filtered Shower Head Set 20+3 Stage Shower Filter For Hard Water Removes Chlorine And Harmful Substances - Showerhead Filter
    Amazon.com
    17K+
    Free shipping
    $50.95
    Aquahomegroup Luxury Filtered Shower Head Set 20+3 Stage Shower Filter For Hard Water Removes Chlorine And Harmful Substances - Showerhead Filter
    Amazon.com
    17K+
    $16.99
    Water Testing Kits For Drinking Water: 125 Strips 16 in 1 Well And Drinking Water Test Kit, TESPERT Water Test Strips With Hardness, Ph, Lead, Iron,
    Amazon.com
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    $16.99
    Water Testing Kits For Drinking Water: 125 Strips 16 in 1 Well And Drinking Water Test Kit, TESPERT Water Test Strips With Hardness, Ph, Lead, Iron,
    Amazon.com
    3K+
    $23.39
    EASYTEST 20 in 1 Drinking Water Test Kit - Well Water Testing Kit - Water Test Strip For House Water For Ph, Hardness, Chlorine, Lead, Iron,
    Amazon.com
    15
    $23.39
    EASYTEST 20 in 1 Drinking Water Test Kit - Well Water Testing Kit - Water Test Strip For House Water For Ph, Hardness, Chlorine, Lead, Iron,
    Amazon.com
    15