Grodan A-OK Starter Plugs - 98 Plugs Bowl Trimmer Temperature measurement accuracy: ±2℉

Temperature measurement accuracy: ±2℉

Recommended pH for most plants is 5

Package includes1x Vortex Pro-Lite Filter 8" x 40" Carbon Filter

For best results with these Macroplugs always insert them in the GRODAN Gro-Smart tray

Grodan A-OK Starter Plugs - 98 Plugs Bowl Trimmer Temperature measurement accuracy: ±2℉Grodan A OK Starter Plugs 98 Plugs Square size plugs connected to each other at the top of the plug forming a sheet fitting a 10 20 tray 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