Grodan AO 36 X 36 X 40mm Cubes (Plugs) -- 2 Sheet Pack

Grodan AO Cubes 1.4" X 1.4" X 1.6" (36mmX36mmX40mm) Tapered to bottom (connected at top) 98 cubes per sheet 10mm X 10mm seed hole (.4") Pollutant free pathogen free Does not lock up nutrients Does not  release substances into water or nutrients Designed specifically for irrigation efficiency and uniformity Holds the perfect ratio of water to air that the plant needs Recycleable Fits 1020 tray Available in cases (30 sheets - 2,940 cubes) call or e-mail for price Rockwool or stonewool is a very environmentally friendly product.  It is made by melting basalt rock and chalk, then spinning the molten rock into fibers, much like cotton candy.  These fibers are compressed and cut into the various sheets, cubes, blocks, etc.  One cubic foot of rock makes 37 cubic feet of rockwool.  The World Heath Organization has classified rockwool as a safe-to-use bio-soluble product.  Grodan Rockwool AX Cubes are suitable for starting a wide range of plants, and is effective in growing anything from tom