Rockwool / Stonewool 3 Inch Gro Blocks with Holes – 8 Pack
Made in Denmark since 1969, Grodan rockwool (also called stonewool) is widely recognized as the ideal soilless substrate. For any growing application, rockwool offers speed, ease of use, and cleanliness. Rockwool is an alternative to coco coir and expanded clay for hydroponic applications.
- 3" Gro Blocks can be used as an intermediary or final container for planting.
- Individually wrapped cubes hold the rockwool's shape and prevent algae growth.
- Grodan A-OK Staters and Macroplugs fit snugly into the pre-formed hole on the top of the 3" Gro Block.
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Overview
Rockwool / Stonewool 3″ Gro Blocks with Holes Measures 3″ x 3″ x 2.5″ each Comes in a EIGHT PACK Made in Denmark since 1969, rockwool (also called stonewool) is widely recognized as the ideal growing substrate. For any growing application, rockwool offers speed, ease of use and cleanliness. Grodan and Paragro rockwool is known for its top quality, consistency and performance.
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