Grodan Rockwool Cubes with Hole measure 75 x 75 x 25 mm (3 x 3 x 1 inch) and serve for propagation of seedlings and clones. Each cube has a pre-drilled hole for seed insertion or cutting placement. Made from spun mineral wool fibers, the cubes offer consistent water retention and air space to support root initiation and development. They are supplied sterile and pH-stabilized at 5.5. Compatible with hydroponic propagation trays, flood-and-drain systems, or as starter media in larger setups.
Grodan Rockwool Cube with hole 75 x 75 x 1 (3 inch)
$1.30
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