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

4.3 (5) Write Review
Free shipping on orders over $29.99

$14.36

$ 7 .19 $7.19

In Stock

About this item

  • 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 test 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.


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


Corrie
Reviewed in the United States on March 23, 2025
Great product works perfectly, I found out that where I live only the hot water is softened. I didn’t know it could be set up like that. So I wanted to check. All signs show this place as having really hard water. Both are true the cold water is off the charts for really hard water and the hot water is soft. Great value the color accuracy is better than I expected and was so easy to understand I definitely recommend purchasing comes with more than enough to last for a long time
Customer
Reviewed in the United States on February 28, 2025
A very generous supply of easy to use test strips. I like that there are several sealed packages of strips resulting in greater shelf life. They seem accurate however the low degree of precision takes some getting used to. (For greater precision an expensive meter would be required.) Overall a good selection for basic hardness checking.
Kent J.
Reviewed in the United States on April 4, 2025
Product works as advertised
Silvia Galatis
Reviewed in the United States on April 3, 2025
Reasonable price and quality
Georgia Boy
Reviewed in the United States on April 1, 2025
Very good product. I suspected my water softener was not working properly and this test productproved my point. I was then able to get the company that I purchased the softener unit from to make the necessary repair.