(3) 6'' x 36'' RW Slabs – $19.95 (12) 6'' x 36'' RW Slabs – $69.95 (3) 8'' x 36'' x 3'' Slabs – $24.95 (12) 8'' x 36'' RW Slabs – $89.95 (2) 12'' x 36'' RW Slabs – $24.95 (8) 12'' x 36'' RW Slabs – $89.95

Grodan Rockwool slabs come in 3 different sizes. Normally, you would place a rockwool cube on top of them and let the roots grow into them. They are great to cut up into squares and use them for the extra root growth below cubes and to keep the plants from tipping over. They are sold in packs of 2 or 3 and in cases.

Europonic Rockwool Conditioner




Granulate Rockwool




Sure To Grow Inserts