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4 in Rockwool Block Cover HGCOV4

4" Rockwool Block Cover
4 in Rockwool Block Cover HGCOV4

4" Rockwool Block Covers - 40 pack HGCOV4



Reflect light to plant leaves, where it’s needed most. Block light from media. Eliminate algae and mildew growth. 40 dual sided block covers per pack. Works great with GRODAN Blocks.
  • Block light from media
  • Reflect light to plant leaves where it's needed most
  • Eliminate algae and mildew growth
  • 40 dual-sided block covers per pack


Contact HydroShack Hydroponics

Want to order by phone or can't find the hydroponics product you're looking for? Give us a call at (713) 292-1921 and we will be happy to help you find the right solution for your garden!

Additional Information

Additional Information

Brand Hydrofarm
Weight 0.0400
Dimensions (L x W x H) N/A
Price $13.03

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