A-Ok Starter Plugs™ are for starting seeds and rooting cuttings prior to plugging into larger Gro-Blocks™.
The 1.5” size fits perfectly in the Gro-Smart tray as well as all our pre-drilled Gro-Blocks. One advantage of using the Gro-Smart tray is that 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 package that fits a standard 10 x 20 tray (flat).
Usage: see photo attached
Specification Chart: A-OK PLUGS/MACROPLUGS - Size of Plug - Plugs/Package - Plugs/Case AO 36/40 (1.5” plugs) - 1.4" sq. x H 1.57" - 98 - 2940