Skip to content

RedRock Rockwool 4" 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
  • Made from US derived raw materials
Each block measures 4-Inch x 4-Inch x 4-Inch with a 42/40 Hole