Grodan Stonewool MacroPlugs Ventilation Inert root media such as

Inert root media such as rockwool

They feature razor-sharp stainless steel blades

It is suitable for growing in pots and open soil and both in and outdoors

Total-release foggers ensure uniform coverage with multiple delivery points throughout the greenhouse and reduce operating expenses because there's no expensive fogging equipment to maintain or repair

HPS equivalent: 1200w

Grodan Stonewool MacroPlugs Ventilation Inert root media such asMacroPlugs 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.