Industrial Test Systems WaterWorks 481108 Total Hardness Test Strip, 3 Second Test, 0-1000ppm Range, Our #1 Test Strip for Total Hardness, Bottle of 50 Tests, Tan

Combining accuracy, affordability, and ease-of-use, our patented test strips have revolutionized water testing. They provide accurate, rapid results at an affordable cost. Designed using cutting-edge chemistries and state-of-the-art manufacturing processes, our test strips and test kits replace outdated testing kits that are labor and cost intensive.