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The Grodan Delta NG2.0 DNG4 is a professional stone wool growing block measuring 75 x 75 x 65 mm, featuring a small planting hole of 27 x 40 mm. It is designed for reliable young plant propagation and further plant development in hydroponic and other growing systems.
Thanks to Grodan's innovative NG2.0 technology, this growing block provides improved vertical water distribution and more efficient utilisation of the entire substrate volume. Its vertical fibre structure and water-absorbing stone wool fibres support uniform root development and precise irrigation control.
The 27 mm planting hole is suitable for compatible smaller propagation plugs. Delta NG2.0 blocks are particularly well suited for use with Grodan stone wool slabs measuring 7.5 cm in height.