If your time is limited and you wish to simply hand water twice a week or you have never used a Gro-Slab and want to experiment with a small one first, then the Uni-Slab is for you.
Uni-Slab offers a low-maintenance, simple way for growers to have fresh herbs, healthy greens or one larger plant in a small area. By keeping the wrapping on the rockwool, nutrients and moisture last longer by slowing the evaporation process.
The best part of Uni-Slab is that it is self contained. So if growing one large plant and disease occurs, the roots won't spread the disease to other plants.