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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 large planting hole of 40 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 offers improved vertical water distribution and more efficient utilisation of the entire substrate volume. The vertical fibre structure and hydrophilic stone wool fibres support uniform root development and precise irrigation control.
The large planting hole is suitable for Grodan Mini-Blocks measuring 40 x 40 mm and other compatible propagation plugs. The growing block is an excellent match for Grodan stone wool slabs measuring 7.5 cm in height.