Determine the hardness of your brewing water yourselve. Easy to use: dip the strip in a sample of water, wait 1 minute and read the hardness! Graduation: 0/5/10/15/20/25 °D (German degrees). 10 strips per pack.
hardness-strips for water, 10 stripshttps://www.brouwland.com/en/our-products/winemaking/measuring-instruments/ph-measurement/d/hardness-strips-for-water-10-strips
Packing dimensions and weight: