Grodan Stonewool A-OK Starter Plugs Options:Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet) (30 Sheets/Cs) The durable casing stands up

The durable casing stands up to tough conditions

Also compatible with Gavita 750-1000 watt DE fixtures

Remote sensors for the temperature and humidity provide accurate monitoring and control

Volume: 15 gal

For efficiency

Grodan Stonewool A-OK Starter Plugs Options:Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet) (30 Sheets/Cs) The durable casing stands upA OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro Blocks. A OK Starter Plugs come labeled with instructions in a shrink wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.