Grodan Rockwool Blocks 4” (10cm) – Small or Large Hole

Grodan Grodan Rockwool Blocks 4” (10cm) – Small or Large Hole is supplied for horticultural, hydroponic or controlled indoor growing use.

• Check the selected size, variant and suitability before purchase.
• Use according to the manufacturer’s instructions.
• Store and handle safely as directed on the product label.