Grodan 3-inch rockwool cubes measure 75 x 75 mm and feature a no-hole design. Constructed from spun basaltic rock fibers, these cubes offer a stable pH between 5.5 and 6.5, high water retention capacity, and superior aeration for root zone development. The uniform fibrous structure supports even moisture distribution and promotes strong root penetration during seedling germination and clone rooting. Easy to handle and transplant into larger hydroponic media without damage. Sterile upon arrival and suitable for reuse after sterilization. Sold individually for precise propagation needs.
Grodan cubes $ each – 75 x 75 no hole (3 inch)
$1.30
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400 in stock (can be backordered)
