Allows a rockwool user to seamlessly stack a 4 in cube on top of a 6 in cube or a 6 in cube on top of a 8 in cube—blocking light and eliminating algae, all while allowing in the necessary air a plant needs to thrive.
Grodan A-OK 25/40 – 1 in x 1 in Plugs (200/Sheet) (30 Sheets/Cs)
Grodan MacroPlug Round w/ Slit (50/Bag) (35 Bags/Cs)
Grodan Expert Slab 20/75 8 in x 3 in x 36 in (12/Cs)
Grodan Delta 8 – 4 in Block 4 in x 4 in x 3 in w/ Hole (30/Cs)
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