Granubor is a calcium-and-magnesium-free borate, produced solely from sodium tetraborate pentahydrate. You’ll find no added impurities, ingredients, fillers, or coatings.
Technical features include:
-
15% boron content
-
Physically refined, non-chemically treated
-
Uniform average particle size, matching standard granulated fertilizers
-
Limited segregation and dust content
Download product data sheet