Grow Block 4x4x2.5 - 216/case

Commercial grade stone wool pro starter blocks sourced and manufactured in North America.

  • Our Stone wool starter blocks are made in the USA and processed in Canada
  • Wetting agent ensures nutrients are immediately plant available
  • The high fiber density of the stone wool starter blocks makes better use of water and fertilizers while allowing dry back
  • Our stone wool starter blocks are priced for commercial agriculture production
  • Sizes available for any crop

w/ 42/40 Hole - 10x10x6.5cm - 4-Inch x 4-Inch x 2.5-Inch