Grodan Gro-Block Improved GR10 Large 4 in with Hole - 4 x 4 x 4 Inch - Unwrapped Case of 144 or Wrapped Strip of 6
Grodan Gro-Block Improved GR10 is a stone wool propagation and growing block with a pre-drilled transplant hole, made with Grodan's advanced wetting technology. It spreads water and nutrients evenly through the block for more uniform water content and EC, and lets roots use the whole block. Choose the bulk, unwrapped case of 144, or the wrapped version sold as a strip of 6 blocks.
- 4 in x 4 in x 4 in (10 x 10 x 10 cm) stone wool block with hole
- Unwrapped Case of 144: 144 blocks with no plastic covering
- Wrapped Strip of 6: six blocks per strip, wrapped (white label)
- Advanced wetting agent and optimized fiber structure
- Before use, saturate with an EC 1.5, pH 5.5 nutrient solution for up to 2 minutes
- One drip stake per block is recommended
Model # / SKU:
Unwrapped Case of 144: RW286661
Wrapped Strip of 6: RW286612
- In stock (233 available)
- Backordered, shipping soon
Shipping:
We ship via UPS and USPS. Most orders ship within 1–2 business days from our Bay Area warehouse.
Returns are accepted within 30 days of delivery for unopened, unused items in original packaging. To initiate a return, email us at dsgardensupplies@gmail.com.