Grodan Stonewool MacroPlugs Options:Grodan MacroPlug Round w/ Slit Bulk (2000/Cs) leading to lower watering costs

leading to lower watering costs

discard after 3+ weeks

Features a high efficiency SunBlaster 11 Watt high output light consuming 20% less power than a standard domestic light bulb and giving 10

the heat is contained within your hood to be carried away more efficiently by your existing air-cooling system

Grodan Stonewool MacroPlugs Options:Grodan MacroPlug Round w/ Slit Bulk (2000/Cs) leading to lower watering costsMacroPlugs 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.