RedRock® Grow Block PRO w/ 42/40 Hole, 6" x 6" x 5.3" (Single)

One Single (1 pcs.) RedRock® Grow Block PRO w/ 42/40 Hole - 15x15x13.5cm - 6-Inch x 6-Inch x 5.3-Inch (Single, 1 Unit)

Commercial grade PRO Stone wool grow blocks sourced and manufactured in North America

• Stone wool grow blocks are made in the USA
• RedRock Stonewool grow blocks PRO are priced for commercial agriculture production
• Stone wool has high fiber density makes better use of water and fertilizers while allowing dry back
• Sizes available for any crop