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$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+
$13.98
Pondcare Test Kits AQP80- Nitrate Test Kit By API Pond
ThePondOutlet
30-day returns (most items)
$13.98
Pondcare Test Kits AQP80- Nitrate Test Kit By API Pond
ThePondOutlet
30-day returns
$14.99
$15.99
SJ WAVE 16 in 1 Drinking Water Testing Kits - 100 Strips (10 Strips Per Pouch) Water Testing Kits For Drinking Water, Home Tap And Well Water Test Kit
Amazon.com
3K+
$14.99
$15.99
SJ WAVE 16 in 1 Drinking Water Testing Kits - 100 Strips (10 Strips Per Pouch) Water Testing Kits For Drinking Water, Home Tap And Well Water Test Kit
Amazon.com
3K+
$32.96
$35.59
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
32K+
$32.96
$35.59
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
32K+
$9.48
Pondcare Test Kits AQP160-Wide Range PH Test Kit By API Pond
ThePondOutlet
30-day returns (most items)
$9.48
Pondcare Test Kits AQP160-Wide Range PH Test Kit By API Pond
ThePondOutlet
30-day returns
$11.98
Pondcare Test Kits AQP26 - Nitrite Test Kit By API Pond
ThePondOutlet
30-day returns (most items)
$11.98
Pondcare Test Kits AQP26 - Nitrite Test Kit By API Pond
ThePondOutlet
30-day returns
$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
$21.48
$27.88
Allpoints Private Label 8016436 Test Kit(Water Hardness Dual | OEM | Commercial Restaurant Supply
RestaurantSupply.com
22% off
$21.48
$27.88
Allpoints Private Label 8016436 Test Kit(Water Hardness Dual | OEM | Commercial Restaurant Supply
RestaurantSupply.com
$138.40
2401 Pro Products Water Test Kit (Hardness, Iron And Ph)
Discount Filter Store
$138.40
2401 Pro Products Water Test Kit (Hardness, Iron And Ph)
Discount Filter Store
$71.39
$142.84
6 in 1 Digital Wifi Water Quality Tester PH/EC/TDS/SALT/G.S/Temp Meter Water Analyzer APP Smart
Aliexpress
Free shipping
50% off
$71.39
$142.84
6 in 1 Digital Wifi Water Quality Tester PH/EC/TDS/SALT/G.S/Temp Meter Water Analyzer APP Smart
Aliexpress
Free shipping
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com
12
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com
12
$49.97
$84.97
Water Quality Tester
Until Times Up
41% off
$49.97
$84.97
Water Quality Tester
Until Times Up
$21.00
Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
Aliexpress
Free shipping
$21.00
Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
Aliexpress
Free shipping
$157.65
Lovibond Wide Range Ph Test Kit - Accurate Water Analysis For Boiler, Cooling, And Pool Water | Measures 4 To 10 Ph With Easy-To-Use Comparator
Cleanflow
$157.65
Lovibond Wide Range Ph Test Kit - Accurate Water Analysis For Boiler, Cooling, And Pool Water | Measures 4 To 10 Ph With Easy-To-Use Comparator
Cleanflow
$12.19
$24.85
2Pcs 4 in 1 Digital Water Tester TDS 0-9990Ppm 0.01 PH High Precision Pen Water Tester 0-14 PH LCD
Aliexpress
Free shipping
50% off
$12.19
$24.85
2Pcs 4 in 1 Digital Water Tester TDS 0-9990Ppm 0.01 PH High Precision Pen Water Tester 0-14 PH LCD
Aliexpress
Free shipping
$164.43
Lovibond High Range Total Chlorine DPD Test Kit - Accurate Disinfection Control For Waterline Sanitizing Applications | Range 10 - 300 Mg/L
Cleanflow
$164.43
Lovibond High Range Total Chlorine DPD Test Kit - Accurate Disinfection Control For Waterline Sanitizing Applications | Range 10 - 300 Mg/L
Cleanflow
$482.08
HK100MKII-15 Parker Velcon Hydrokit Water Detection Kit, 100-Test, 15 PPM
Valin Process Control Solutions
$482.08
HK100MKII-15 Parker Velcon Hydrokit Water Detection Kit, 100-Test, 15 PPM
Valin Process Control Solutions
$99.99
LAMOTTE Water Testing Kit, Chlorine, 0.2 To 3 PPM, 3308-01
Zoro.com
$99.99
LAMOTTE Water Testing Kit, Chlorine, 0.2 To 3 PPM, 3308-01
Zoro.com
$14.49
$27.33
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
46% off
$14.49
$27.33
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
$294.99
AQUAPHOENIX SCIENTIFIC Test Kit, Combination, Boiler Water, BWTK100
Zoro.com
$294.99
AQUAPHOENIX SCIENTIFIC Test Kit, Combination, Boiler Water, BWTK100
Zoro.com
$48.77
Taylor Water Technologies - Basic Liquid Dpd Test Kit High Range Nsf
Pool Spa Supplies
$48.77
Taylor Water Technologies - Basic Liquid Dpd Test Kit High Range Nsf
Pool Spa Supplies
$44.97
Digital Water Quality Tester Pen PH TDS EC ORP Temp SG Salinity Meter Digital Water Quality Tester Pen PH TDS EC ORP Temp SG Salinity Meter
Inspire Uplift
$44.97
Digital Water Quality Tester Pen PH TDS EC ORP Temp SG Salinity Meter Digital Water Quality Tester Pen PH TDS EC ORP Temp SG Salinity Meter
Inspire Uplift
$12.00
Sensafe (487941) Safe Well Check Home Well Water Test Kit
Isopure Water
$12.00
Sensafe (487941) Safe Well Check Home Well Water Test Kit
Isopure Water
$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+
$15.00
TDS Meter - Third Wave Water
Third Wave Water
$15.00
TDS Meter - Third Wave Water
Third Wave Water
$43.99
$92.19
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightInTheBox
52% off
$43.99
$92.19
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightInTheBox
$86.73
$169.81
Advanced Home Water Test Kit | Well Or City | EPA Certified Drinking Water Labs | 1 Best Home Water Test - Wirecutter
evacontinental.com
48% off
$86.73
$169.81
Advanced Home Water Test Kit | Well Or City | EPA Certified Drinking Water Labs | 1 Best Home Water Test - Wirecutter
evacontinental.com
$309.00
Extech Waterproof Pocket Water Quality Tester | Cole-Parmer
Cole-Parmer
$309.00
Extech Waterproof Pocket Water Quality Tester | Cole-Parmer
Cole-Parmer
$146.90
Taylor Service Complete Pool Water Test Kit FAS-DPD K-2006C
PoolZoom.com
25
$146.90
Taylor Service Complete Pool Water Test Kit FAS-DPD K-2006C
PoolZoom.com
25
$151.94
HK25 Parker Velcon Hydrokit Water In Fuel Test Kit, 25-Test
Valin Process Control Solutions
$151.94
HK25 Parker Velcon Hydrokit Water In Fuel Test Kit, 25-Test
Valin Process Control Solutions
$9.95
$12.44
Consumer Chlorine Test Kit For Water Treatment | 2501
US Water Systems
20% off
$9.95
$12.44
Consumer Chlorine Test Kit For Water Treatment | 2501
US Water Systems
$84.35
$165.51
Advanced Home Water Test Kit | Well Or City | EPA Certified Drinking Water Labs | 1 Best Home Water Test - Wirecutter
theeurobot
49% off
$84.35
$165.51
Advanced Home Water Test Kit | Well Or City | EPA Certified Drinking Water Labs | 1 Best Home Water Test - Wirecutter
theeurobot
$15.99
$26.70
Digital Water Quality Tester Pen 3-In-1 Professional Tds Water Tester Pen Measures Tds Levels Conductivity And Temperature Suitable For Drinking Water
LightInTheBox
40% off
$15.99
$26.70
Digital Water Quality Tester Pen 3-In-1 Professional Tds Water Tester Pen Measures Tds Levels Conductivity And Temperature Suitable For Drinking Water
LightInTheBox
$59.89
LAMOTTE Water Testing Kit, Ph, Range 3.0 To 10.5, 5858-01
Zoro.com
$59.89
LAMOTTE Water Testing Kit, Ph, Range 3.0 To 10.5, 5858-01
Zoro.com
$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
$7.95
$9.94
Consumer Ph Test Kit For Water Treatment | 23053
US Water Systems
20% off
$7.95
$9.94
Consumer Ph Test Kit For Water Treatment | 23053
US Water Systems
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    Shop water test kit

    Sponsored
    About our ads
    $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+
    $13.98
    Pondcare Test Kits AQP80- Nitrate Test Kit By API Pond
    ThePondOutlet
    1K+
    30-day returns (most items)
    $13.98
    Pondcare Test Kits AQP80- Nitrate Test Kit By API Pond
    ThePondOutlet
    1K+
    $14.99
    $15.99
    SJ WAVE 16 in 1 Drinking Water Testing Kits - 100 Strips (10 Strips Per Pouch) Water Testing Kits For Drinking Water, Home Tap And Well Water Test Kit
    Amazon.com
    3K+
    $14.99
    $15.99
    SJ WAVE 16 in 1 Drinking Water Testing Kits - 100 Strips (10 Strips Per Pouch) Water Testing Kits For Drinking Water, Home Tap And Well Water Test Kit
    Amazon.com
    3K+
    $32.96
    $35.59
    API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
    Amazon.com
    32K+
    $32.96
    $35.59
    API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
    Amazon.com
    32K+
    $9.48
    Pondcare Test Kits AQP160-Wide Range PH Test Kit By API Pond
    ThePondOutlet
    1K+
    30-day returns (most items)
    $9.48
    Pondcare Test Kits AQP160-Wide Range PH Test Kit By API Pond
    ThePondOutlet
    1K+
    $11.98
    Pondcare Test Kits AQP26 - Nitrite Test Kit By API Pond
    ThePondOutlet
    21
    30-day returns (most items)
    $11.98
    Pondcare Test Kits AQP26 - Nitrite Test Kit By API Pond
    ThePondOutlet
    21
    $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
    $21.48
    $27.88
    Allpoints Private Label 8016436 Test Kit(Water Hardness Dual | OEM | Commercial Restaurant Supply
    RestaurantSupply.com
    22% off
    $21.48
    $27.88
    Allpoints Private Label 8016436 Test Kit(Water Hardness Dual | OEM | Commercial Restaurant Supply
    RestaurantSupply.com
    $138.40
    2401 Pro Products Water Test Kit (Hardness, Iron And Ph)
    Discount Filter Store
    $138.40
    2401 Pro Products Water Test Kit (Hardness, Iron And Ph)
    Discount Filter Store
    $71.39
    $142.84
    6 in 1 Digital Wifi Water Quality Tester PH/EC/TDS/SALT/G.S/Temp Meter Water Analyzer APP Smart
    Aliexpress
    Free shipping
    50% off
    $71.39
    $142.84
    6 in 1 Digital Wifi Water Quality Tester PH/EC/TDS/SALT/G.S/Temp Meter Water Analyzer APP Smart
    Aliexpress
    Free shipping
    $46.49
    Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
    PoolZoom.com
    12
    $46.49
    Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
    PoolZoom.com
    12
    $49.97
    $84.97
    Water Quality Tester
    Until Times Up
    41% off
    $49.97
    $84.97
    Water Quality Tester
    Until Times Up
    $21.00
    Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
    Aliexpress
    Free shipping
    $21.00
    Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
    Aliexpress
    Free shipping
    $157.65
    Lovibond Wide Range Ph Test Kit - Accurate Water Analysis For Boiler, Cooling, And Pool Water | Measures 4 To 10 Ph With Easy-To-Use Comparator
    Cleanflow
    $157.65
    Lovibond Wide Range Ph Test Kit - Accurate Water Analysis For Boiler, Cooling, And Pool Water | Measures 4 To 10 Ph With Easy-To-Use Comparator
    Cleanflow
    $12.19
    $24.85
    2Pcs 4 in 1 Digital Water Tester TDS 0-9990Ppm 0.01 PH High Precision Pen Water Tester 0-14 PH LCD
    Aliexpress
    Free shipping
    50% off
    $12.19
    $24.85
    2Pcs 4 in 1 Digital Water Tester TDS 0-9990Ppm 0.01 PH High Precision Pen Water Tester 0-14 PH LCD
    Aliexpress
    Free shipping
    $164.43
    Lovibond High Range Total Chlorine DPD Test Kit - Accurate Disinfection Control For Waterline Sanitizing Applications | Range 10 - 300 Mg/L
    Cleanflow
    $164.43
    Lovibond High Range Total Chlorine DPD Test Kit - Accurate Disinfection Control For Waterline Sanitizing Applications | Range 10 - 300 Mg/L
    Cleanflow
    $482.08
    HK100MKII-15 Parker Velcon Hydrokit Water Detection Kit, 100-Test, 15 PPM
    Valin Process Control Solutions
    $482.08
    HK100MKII-15 Parker Velcon Hydrokit Water Detection Kit, 100-Test, 15 PPM
    Valin Process Control Solutions
    $99.99
    LAMOTTE Water Testing Kit, Chlorine, 0.2 To 3 PPM, 3308-01
    Zoro.com
    $99.99
    LAMOTTE Water Testing Kit, Chlorine, 0.2 To 3 PPM, 3308-01
    Zoro.com