ROCKWOOL STARTER PLUG 1.5" 98 per SHEET
Grodan - A-OK 36/40 Starter Plugs are for starting seeds and rooting cuttings prior to plugging into larger Gro-Blocks The 1.5" size work perfectly in the Gro-Smart tray. The advantage of the Gro-Smart tray is it elevates the plugs above the waterline and ensures good airflow around the plugs. A-Ok plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). The 1.5" A-Ok fits holes in all our Gro-blocks perfectly.
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