Grodan Rockwool Macro Plugs Round w/Slit GP3 Grow Always add pH adjusters to

Always add pH adjusters to water

Set your desired humidity level and the controller will activate and deactivate humidifying and dehumidifying equipment appropriately

sturdy growth and strong root development in seedlings and clones

Dip lower 1 cm of cutting into STIM-ROOT

Grodan Rockwool Macro Plugs Round w/Slit GP3 Grow Always add pH adjusters 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.