Total Hardness test strips for water quality are the ideal solutions for many projects. This test kit is great for residential tap and well water hardness evaluation. These test strips offer a wide range of detection and are calibrated to be both sensitive and accurate.With their low cost and high accuracy, Total Hardness test strips will also save you valuable time. No more counting drops or waiting for laboratory results. With these hardness strips you are in control and can find out exactly where your calcium level is before it becomes a problem.