Grodan Rockwool Macro Plugs Round w/Slit GP3 Grow supports the plant’s resistance to

supports the plant’s resistance to disease and stress and promotes its inner and outer strength

sturdy growth and strong root development in seedlings and clones

Oligochitosan may be described as a nano-molecule of chitosan

) 11 Height (in

Always add pH adjusters to water

Grodan Rockwool Macro Plugs Round w/Slit GP3 Grow supports the plant’s resistance toMacroPlugs are 1. 5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro Block hole. For best results, always insert MacroPlugs in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.