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  • Grodan Gro-Wool Absorbent Granulate

    Grodan Gro-Wool Absorbent Granulate

    Granulated rockwool works great on its own or mixed with other loose media, such as expanded clay rocks or coconut fiber. If planting in containers outdoors, water absorbent granulate is the best medium of choice.

    $103.75 $83.19
  • Grodan Expert Slab 20/75 8 in x 3 in x 36 in - Case of 12

    Grodan Expert Slab 20/75 8 in x 3 in x 36 in - Case of 12

    Gro-Slabs™ provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block™ plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae...

    $163.55 $131.17
  • Grodan Expert Slab 15/75 6 in x 3 in x 36 in - Case of 12

    Grodan Expert Slab 15/75 6 in x 3 in x 36 in - Case of 12

    Gro-Slabs™ provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block™ plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae...

    $126.35 $101.40
  • Gro Block Improved Mini Block 2" (Shrinkwrap/Strip)

    Gro Block Improved Mini Block 2" (Shrinkwrap/Strip)

    Grodan ImprovedGro Block Improved Mini Block 2" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and...

    $470.22 $465.22
  • Grodan GR40 Uniblock 8”x8”x4” Baby Mama, case of 36

    Grodan GR40 Uniblock 8”x8”x4” Baby Mama, case of 36

    Grodan ImprovedUniblock GR40, 8" x 8" x 4"Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for...

    $191.65 $166.71
  • Gro Block Improved Medium 4"GR7,5 w/ hole 4"x4"3.1" Shrink/S

    Gro Block Improved Medium 4"GR7,5 w/ hole 4"x4"3.1" Shrink/S

    Grodan ImprovedGro Block Improved GR7.5 Medium 4" w/Hole 4" x 4" x 3.1" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone...

    $294.10 $283.86
  • Gro Block Improved Large 3"GR5,6 w/ hole 3"x3"x4" Shrink/Str

    Gro Block Improved Large 3"GR5,6 w/ hole 3"x3"x4" Shrink/Str

    Grodan ImprovedGro Block Improved GR5.6 Large 3" w/Hole 3" x 3" x 4" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool...

    $306.71 $296.03

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