Water Total Hardness Test Strips, Water Hardness Test kit ranges 0-425mg/L, Z&Y BETTER LIFE Water Hardness Test kit,Testing Total…

Description

Z&Y Better Life total hardness water test kit 150ct ,test for drinking water, aquarium ,Pool & Spa;best Kit for Accurate Water Quality Testing, Total Hardness – water hardness test strips. 1) Take a sample of water in a clean cup and simply dip the strip into the water and remove immediately. 2) Hold horizontally for 30 secs.(do not shake excess water from strips)then compare the strip to the color chart for total hardness (in that order)and treat your water if necessary and then do a re-test be