RedRock Grow Block PRO w/ 42/40 Hole - 15x15x13.5cm - 6-Inch x 6-Inch x 5.3-Inch (48/Cs) CASE

6in.x 6in. RedRock Grow Block PRO w/ 42/40 Hole 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 w/ 42/40 Hole - 15x15x13.5cm - 6-Inch x 6-Inch x 5.3-Inch   SELECT GROW MEDIA FOR COMMERCIAL USE It is common to find propagators and cultivators moving fresh cuttings into plugs for the initial stage of development. Once rooted plants are transplanted into stone wool starter blocks, stonewool grow blocks, and then placed on top of grow slabs to extend root zone development and access to water and plant nutrients. Selecting the correct grow media for your crop depends on many variables such as type of plant, size, duration, density, and more. SPECIFICATIONS AND PACKAGING RedRock Grow Block PR