Redrock Grow Block w/ Hole 4x4x4inch, 144 Case

Description

• 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
• Each block measures 4-Inch x 4-Inch x 4-Inch with 42/40 Hole