Grodan Stonewool Macro Plugs MACRO PLUG W/SLIT(32/BAG) (1EA= 50 BAGS) Macro Plugs have a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results with these Macro Plugs, always insert them into a tray with individual cells. The individual cell will make sure that the plug stays closed around the stem of your cutting. Manufacturer's Product Information 2007 MSRP Each $ 6.52 Case Weight 0.20 LB Case Quantity 1600
