GRODAN GRO-BLOCKS ROCKWOOL STONEWOOL: Pre-drilled holes fit 1.5″ A-OK starter plugs
6 blocks per strip
4″ square x 2.5″H
. A fantastic use of what is also known as stonewool or rockwool.
| Weight | 0.6 lbs |
|---|---|
| Dimensions | 23.5 × 4 × 2.5 in |
| Unit | CASEOF36, Each |
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