RedRock Rockwool 6" PRO Grow Block

RedRock Blocks stone wool blocks offer cultivators, propagators, and commercial growers the opportunity to grow more while using less: less water, less plant nutrients, and less growing space. Benefits of RedRock Blocks High fiber density High moisture retention 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 This white label product was sold to the largest cultivators in North America for years and is now available to you Each block measures 6-Inch x 6-Inch x 5.3-Inch with a 42/40 Hole