Grodan Gro Block Improved Mini Block 1.5" Strip water-filtration and entirely soluble composition make

and entirely soluble composition make Tundra ideal for use both indoors and out in all types of irrigation systems

75" x 14" x5

is well suited as a mix-in element with other growth mediums

and the locking hook keeps the blade closed when not in use

Grodan Gro Block Improved Mini Block 1.5" Strip water-filtration and entirely soluble composition makeGrodan Improved Gro Block Improved Mini Block 1. 5" Strip 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 Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the optimal fiber