10 Best Tap Water Hardness Test Kit of 2025

Tested and Reviewed: Top 10 Tap Water Hardness Test Kit deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Save 18%

VARIFY

Varify 17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Bacteria Tester Kits - Well, Tap, Home, City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper & More

18% OffFree Shipping

Editor's bottom line:

“This tap water hardness test kit is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

17 IMPORTANT PARAMETERS: The Varify Premium Drinking Water Test Kit offers an unrivaled, complete analysis of your drinking water by testing for 17 essential parameters. This includes crucial tests for chlorine, fluoride, lead, iron, bacteria, and more, ensuring that you're fully informed about the quality of your water. With this extensive range of testing capabilities, you can detect contaminants and imbalances that could affect your health, providing a holistic view of your water's safety.
PREMIUM QUALITY: Varify stands out with its professional-grade quality, ensuring that every test strip in the kit meets the standards of precision and reliability. Crafted with meticulous attention to detail, this kit is designed to provide you with a dependable and thorough analysis of your water's composition.
EASY TO USE: Varify's water test strips and Bacteria Test kits feature a user-friendly, color-coded system for quick and precise water quality assessments. With clear color changes indicating various parameters, these strips make complex data easily understandable, ensuring you can evaluate your water's safety effortlessly in just minutes.
ACCURATE AND RELIABLE: Varify's water test kit comes with 100 strips in 5 separately sealed pouches (20 strips each), preserving freshness and extending shelf life for dependable testing. It also includes 2 easy-to-use bacteria tests that deliver results in 48 hours, ensuring thorough and accurate assessment of your water's safety and cleanliness. This design ensures precision and convenience in monitoring your water quality.
WATER TESTING KITS THAT GIVE BACK: With every Varify test kit, not only do you secure the safety of your drinking water with our precise and easy-to-use testing solutions, but you also contribute to a global cause. A portion of proceeds goes to Water For Good, fighting water poverty in Central Africa. This means each test not only brings peace of mind to you but also supports #CleanWaterWorldwide, making a real difference in communities in need.

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Picked by 218 people today

9.5

bestprod

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

Free Shipping

Main Highlights

Clear Range: This house water testing kit offers clear, easy to read results and acceptable ranges for all substances. The water contaminant tester delivers clear results on any type of water
Easy to Use: The water hardness test kit for water softener is as easy as adding the water, setting a timer, and reading the results. The strips for water testing come with an easy-to-read results guide
Easy to Understand: The water tester for drinking water comes with a clear guide on the outside of the bottle that lines up with each strip, from alkaline level to soft characteristic readings
Data Sheet Included: These water testing kits for drinking water include a data sheet to record readings for later analysis. The complete water tester for chemicals has it all
Experience our live customer support: a dedicated team of water quality experts ready to offer rapid and efficient responses round the clock through live chat and email. We are committed to taking our customers' feedback seriously, as our sole aim is to deliver products and services that hold genuine value for you.

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Best Value

9.5

Save 43%

HEVEIS

17 in 1 Home Drinking Water Testing Kit - 100 Strips + 4 Bacteria Tests - Tap and Well Water Test Kit, Easy to Test and Read for Hardness, Lead, Iron, Fluoride, pH, Copper, Bacteria and More

43% OffFree Shipping

Main Highlights

Every test counts: Water insecurity can cause health problems, and having suffered from it myself, I am keenly aware that I do not want to see any more families affected. HEVEIS is committed to encouraging families in the United States to be aware of water quality issues and to take steps to test water quality regularly and resolve problems in a timely manner. To eliminate the physical effects of water quality. Small actions add up to a big difference, so take action now for the health of you and your family
Complete and comprehensive: Water testing kits for drinking water offers the most extensive and comprehensive drinking water test kit, so if you want to test your drinking water quality quickly and comprehensively, it's all you need! Once you have it, you'll have peace of mind for the whole family
Easy to use for everyone: No need to be a specialist, even a child can do it independently; results are obtained in 3 simple steps and the home water test kit is accompanied by clear graphic instructions
Easy-to-read, real-time record: Still worried about the bottle's colorimetric difficulties and indicator results you can't remember? The water quality test kit is equipped with an independent color comparison chart and record card; by comparing the test strip with the color comparison chart, the results are instantly available and can be recorded on the record card immediately. The record card is also convenient for later analysis of water quality
In-depth understanding of water quality: Based on actual test results and compared to the EPA standards book, you can clearly understand the meaning and implications of each indicator to help protect your and your family's health. The drinking water testing kit includes EPA standards and detailed descriptions of each indicator. Please contact us if you require a numerical description
Save money, test 104 times: Experts recommend testing your family's water at least once a month, and at least twice as often if it is well water. Instead of spending hundreds of dollars at a lab to test for each element individually, a home water testing kit is much more user-friendly and not only saves you hundreds of dollars, but you can test your water anytime, anywhere
Live customer support: Our team of water quality experts provides fast and effective responses via 24/7 live chat and email! The voice of the customer is very important to us, so whether you have a question, need help or just want to share your feedback, you can always contact us
Water purification system accessories: Our high-quality drinking water test strips are an important supplement to your water purification system. By using these reliable and easy-to-use water quality test kit, you can regularly monitor water quality and detect potential pollutants. Use this essential accessory to protect your health and improve the performance of the entire water purification system

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9.2

Save 32%

Palinoia

22 in 1 Drinking Water Test Kit 130 Strips - Well, Tap, Home Testing Strip for Flouride, Lead, Hardness, Chlorine, Iron, Copper & More

32% OffFree Shipping

Main Highlights

COMPREHENSIVE TESTING: Offers 22 different tests to provide a complete analysis of your water quality. This includes tests for pH, hardness, alkalinity, chlorine, lead, iron, copper, and more.
EASY TO USE: Simple, step-by-step instructions make it easy for anyone to use. Even if youre not a scientist, you can get professional-grade results.
QUICK RESULTS: Get accurate and reliable results in as little as just 15 seconds.
PORTABLE: Compact and lightweight design makes it perfect for testing at home, school, office, or on the go.
SAFE & HEALTHY: Helps ensure your water is safe to drink, cook with, and bathe in. Protect your health and the health of your loved ones.

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9.0

Save 20%

Umlecoa

Umlecoa 16 in 1 Premium Water Test Kit - 125 Home Water Quality Test Strips for Well and Tap Test Kit - Testing for pH, Hardness, Chlorine, Lead, Iron, Copper, Nitrate, Nitrite, etc

20% OffFree Shipping

Main Highlights

16-in-1 Water Test Kit- With Umlecoa water quality test kit, you may know level of Water Hardness, Free Chlorine, Iron, Copper, Lead, Nitrate, Nitrite, Mps, Total Chlorine, Fluoride, Cyanuric Acid, Ammonia Chloride, Bromine, Total Alkalinity, Carbonate, pH easily. Covers main influencing factors which pollute your swimming pool ,hot tub or drinking water quality.
Fast & Accurate Results- Get accurate results in minutes in just 3 steps. Dip an testing strip into water for 2 sec. Remove it and hold horizontally for 30-60 sec (Please don't shake excess water off). Compare to color chart with up to 99% accuracy. Its never been this easy to take a drinking water testing, even a child can do it, save your time and money from long trip to laboratory.
Wide Applicability- Umlecoa 16 in 1 water test strips can be applied to a wide range of water inspection, including drinking water, pool, hot tub, spa, pond, aquarium and industrial waste water and more water quality test, it is ideal for water testing at home, laboratory or school. For the health of you and your family, please use the professional water test strips to detect water quality standards.
Home Test Kit- Package includes: 125 test strips, test tube with cap (help with testing). Ready to use, for your convenience. All kits have safety measures to ensure the quality of your test strips. Economical 125pcs test strips for water in a handy bottle with color card, easy to carry to test anywhere according to your own needs (Tip: Be sure to tighten the cap after taking out the test strip).
Healthy Water & Happy Life- We promise, we follow a strict quality control on each package and each batch, so you never need to worry about inconsistent or faulty readings on these test strips. If you have any concerns about our water test kit, please contact us now! Umlecoa after-sales service team is online 7*24 hours. Our expert team will provide an efficient and satisfactory solution.

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8.8

Save 23%

VARIFY

Varify Water Hardness Test Kit - Water Testing Kit for Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips for Calcium, Magnesium etc (0-425 pmm, 150 Strips)

23% OffFree Shipping

Main Highlights

PROTECT YOUR HOME AND WELLNESS: Understand the impact of hard water on your home and health. Hard water can damage appliances, clog pipes, and affect your skin and hair. By using Varify's Water Testing Kit to monitor your water's hardness, you're taking an important step in preventing potential damage and ensuring the well-being of your household.
QUICK AND ACCURATE RESULTS: Discover the ease and precision of Varify Water Hardness Test Kit. In just seconds, get reliable readings on the hardness of your drinking water, pool, or any other water source. Our simple dip-and-read approach ensures you don't have to wait or travel for accurate water quality information.
EASY-TO-READ COLOR CHART: Experience hassle-free testing with our oversized color chart, designed for effortless result reading. Varify's clear visual guide ranges from red to green, enabling you to quickly understand water hardness levels from 0-25 GPG and 0-425 PPM. Making water testing accessible and straightforward for everyone.
EXTENDED SHELF LIFE WITH VARIFY FRESHSEAL: Enjoy the convenience of our Varify Water Testing Kit, which comes with 100 total hardness test strips in a ready-to-use bottle and two separately sealed pouches for extended freshness. Our innovative FreshSeal technology guarantees the reliability and accuracy of each test, long after your first use.
SUPPORT CLEAN WATER INITIATIVES: With every Varify's Water Hardness Test Kit, you contribute to providing clean water for a year to someone in the Central African Republic. Make a difference in the world's water crisis and support our mission for #WaterForGood and #CleanWaterWorldwide with each water test you perform.

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8.6

Save 33%

JNW Direct

JNW Direct - Quick & Accurate Hardness Test Strips - Ultimate Water Hardness Test Kit - 150 Strips with eBook

33% OffFree Shipping

Main Highlights

CHECK WATER HARDNESS: This handy water hardness test kit allows you to test the hardness of all water sources, from home faucets and taps, to well water, water softeners, dishwashers, showers, aquariums, and many more
MULTIPLE USES: The right levels of water hardness can make a huge difference in the softness of your laundry. Determine whether your water softener is working as efficiently as expected with this water softness test kit. It also helps you keep tabs on your water conditioning and reverse osmosis systems
QUICK & ACCURATE: With this water hardness test kit for water softener its quick and easy to accurately measure water hardness! The hardness water tester offers instant reliable results with simple and clear instructions. Simply dip and compare with the color chart
150 TEST STRIPS: Get more for your money with our soft and hard water test kit. The hard and soft water test kit contains 150 water hardness test strips that can be used to test home faucets and taps, well water, water softeners, dishwashers, showers, and many other water sources
INCLUDES EBOOK: Our hard water tester strips come with a handy eBook packed with information about your water hardness. Record, track and monitor the results of your water test strips with ultimate accuracy for best results

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8.3

Save 43%

Qucship

Qucship 17 in 1 Water Test Kit with Tube and Dropper, Drinking Water Test Kit to Detect Hardness, Lead, E.Coli, Etc. Accurate Water Testing Kits for Drinking Water for Tap and Well Water Tests

43% OffFree Shipping

Main Highlights

17 in 1! Qucship water test kit can detects 17 parameters of water, including pH, hardness, lead, iron, mercury and coliform, etc. We provide high-sensitivity drinking water test kit, so that you can drink with peace of mind and your family will be healthy.
COMPLETE & AFFORDABLE! Our well water test kits provides you with 100 water test strips in 5 airtight bags to ensure long shelf life and reliable results. A test tube and dropper are included with each well water test kit for home, allowing you to sample conveniently and avoid sample contamination.
WIDE APPLICABILITY! Our home water test kit can can be used for water test drinking, as well as well water tests, swimming pools, aquariums, spas, kitchens, bathrooms and so on. Using Qucship water hardness test to test water quality, EPA compliant, and is a good helper for checking your water softener.
QUICK & ACCURATE! Qucship water hardness test kit is easy to use, with just 3 steps to get lab-grade accurate results in seconds. In addition to water test strips, we also give you two bottles of E. coli test powder to determine if your water has harmful bacteria.
Order the water test kit for well water with confidence! With easy-to-follow instructions and thorough testing capabilities, you can trust our kit to give you peace of mind about the safety and purity of your water.

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8.1

WEAQUA

Weaqua Water Hardness Test Kit - DoubleCheck200 Strips with Sample Cup - Hard Water Testing Kit

Free Shipping

Main Highlights

DOUBLE CHECK - Each tester strip is designed with two identical color pads. If the color of the pads differs after testing, it indicates that the test may not be reliable and a new test should be performed.
SAMPLE CUP INCLUDED - Ensure the most accurate water hardness tester results by using the included, free sample cup and fill the testing water to the marked level.
200 WATER TEST STRIPS @ $0.04 EACH - Maximize the time between each purchase with the lowest cost-per-test water hardness test strips that are available.
LONGEST SHELF LIFE - Individually wrapped in packs of 50 to prevent unused strips from going bad due to too much contact with air. Dual, top-and-bottom desiccant design forms a dry force shield around the strips which also prevents the strips from going bad due to too much contact with moisture.
EASILY THE MOST ACCURATE - DoubleCheck to weed out bad color pads, sample cup with pre-measured water level for the most optimum water to test strip ratio, individually wrapped and dual desiccant design gives more accurate results for a longer period of time.

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8.1

Pawfly

Pawfly Water Hardness Test Kits, 100 Strips Hard Water Test Kit for Drinking Water Tap Water Well Pool Spa Water Softener Quick Accurate Water Quality Testing Kit for Calcium & Magnesium (0-425 PPM)

Free Shipping

Main Highlights

Water Hardness Test Strips: This home water test kit quickly detects the hardness of all water. Always provide real-time tests to keep water clean and safe to drink or use.
Easy to Use: First, immerse one test strip into the water sample for 2 sec. Second, take out the strip and hold it horizontally for 15 sec. Last, compare the result with the color chart on the ziplock bag.
Fast & Accurate Result: The water testing kits are highly sensitive to detect even low levels of water hardness. Test range: 0-425 PPM or 0-25 GPG. And the easy-to-read color chart allows you to instantly interpret the test results.
Regular Test: The water hardness test kit contains 100 strips in total. Really convenient to monitor the water quality at regular intervals. Effectively help maintain optimal water conditions to reduce limescale on pipes or home appliances. (The shelf life is 2 years before opening and 100 days after opening.)
Reliable Material: Made of dependable fiber paper, the water testing kit provides instant results. Widely applicable to drinking water, tap water, wells, showers, water softeners, swimming pools, spas, laboratories, industry, etc.

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Our Best Overall Choice

Best Choice

9.7

VARIFY

Varify 17in1 Complete Drinking Water Test Kit - 100 Strips + 2 Bacteria Tester Kits - Well, Tap, Home, City Water Testing Strip for Lead, Alkaline, Chlorine, Hardness, Iron, Fluoride, Copper & More

18% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

17 IMPORTANT PARAMETERS: The Varify Premium Drinking Water Test Kit offers an unrivaled, complete analysis of your drinking water by testing for 17 essential parameters. This includes crucial tests for chlorine, fluoride, lead, iron, bacteria, and more, ensuring that you're fully informed about the quality of your water. With this extensive range of testing capabilities, you can detect contaminants and imbalances that could affect your health, providing a holistic view of your water's safety.
PREMIUM QUALITY: Varify stands out with its professional-grade quality, ensuring that every test strip in the kit meets the standards of precision and reliability. Crafted with meticulous attention to detail, this kit is designed to provide you with a dependable and thorough analysis of your water's composition.
EASY TO USE: Varify's water test strips and Bacteria Test kits feature a user-friendly, color-coded system for quick and precise water quality assessments. With clear color changes indicating various parameters, these strips make complex data easily understandable, ensuring you can evaluate your water's safety effortlessly in just minutes.
ACCURATE AND RELIABLE: Varify's water test kit comes with 100 strips in 5 separately sealed pouches (20 strips each), preserving freshness and extending shelf life for dependable testing. It also includes 2 easy-to-use bacteria tests that deliver results in 48 hours, ensuring thorough and accurate assessment of your water's safety and cleanliness. This design ensures precision and convenience in monitoring your water quality.
WATER TESTING KITS THAT GIVE BACK: With every Varify test kit, not only do you secure the safety of your drinking water with our precise and easy-to-use testing solutions, but you also contribute to a global cause. A portion of proceeds goes to Water For Good, fighting water poverty in Central Africa. This means each test not only brings peace of mind to you but also supports #CleanWaterWorldwide, making a real difference in communities in need.

Show Price

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