Hydrofarm Block Covers - Dual-Sided Light-Blocking Covers for Rockwool Blocks - 4 Inch and 6 Inch, Pack of 40
Hydrofarm Block Covers fit over rockwool blocks to block light from the growing media and reflect light back up to plant leaves. Covering the block surface also helps eliminate algae and mildew growth.
Key Features
- Blocks light from the growing media
- Reflects light to the plant leaves
- Helps eliminate algae and mildew growth
- 40 dual-sided covers per pack
Product Details
- Sizes: 4 inch and 6 inch rockwool block covers
- Pack size: 40 covers
Model # / SKU: 714820 (4 in), 714822 (6 in)
- In stock (23 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.