Grodan Improved Gro-Block Jumbo 6" x 6" x 4" Case of 64 micro-nutrients hero-overlay { position: relative

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It offers a flow rate of 211 Gallons Per Hour (GPH) and a maximum lift height of 4

1/2" Permeate & Pressure Relief Lines

this kit gives you the confidence that your equipment is operating to spec

and heating the incoming cold outside air in wintertime

Grodan Improved Gro-Block Jumbo 6" x 6" x 4" Case of 64 micro-nutrients hero-overlay { position: relativeDescription Product Details: Grodan Improved Jumbo (White Foil) 6" x 6" x 4" (Case of 64) Grodan Improved Jumbo (White Foil) 6" x 6" x 4" (Case of 64): Grodan Improved 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 specialty crops. The result of months of scientific research and trials is Grodan