$6.97 – $62.70
*** There are 6 Gro-Blocks (4″x4″x2.5″ size) per shrink wrap package called a flat (1 flat = 6 pieces)
*** EBB & FLOW and hydroponic setup are shown for example purposes only, they are not included with this product purchase
These Gro-Blocks fit perfect in an EBB & FLOW grow tray or just sit them on top of a Grodan Gro-Top Master Slab
Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a Grodan Delta 4” block. Just place your Mini-Block or your Macroplug/A-OK into the 4” block with the hole and watch your plant flourish.