Grodan Delta 4G Rockwool Block
Sold in strips of 11 Cubes
Once seeds or cuttings are rooted in a propagation cube, transplant them to a Grodan Delta Block.
3” and 4” blocks are ideal for use in NFT, slab culture, dripper or Ebb & Flood systems.
6” Hugo cube can be used for deep Ebb & Flood tables or passive pot culture
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