Grow Plug, 1.5" x 1.5", case of 1500 environmental-controllers Featuring porous breathable fabric

Featuring porous breathable fabric

The weather-resistant housing is tough and durable for years of trouble-free use

Mesh increases diffusion—no hot spots

sea kelp aids in the absorption of nutrients from the soil

• Light cycle extension to induce flowering of long-day plants

Grow Plug, 1.5" x 1.5", case of 1500 environmental-controllers Featuring porous breathable fabricMade of naturally composted materials, it contains natural beneficial fungi and can be inoculated with other biological controls. It is an optimally aerated medium that naturally maintains the proper air water ratio to promote healthy growth. Fits Rapid Rooter tray cells and Hydrofarm cut kit trays.