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Serving the community since 2001

Block Covers 4 in 40/Pack

$16.66

We have run out of stock for this item.

Block Covers 4 in 40/Pack

For blocks of rockwool and other grow media.
  • Blocks light from media— reducing algae and pest problems.
  • Use white side up to reflect light.
  • Use toothpick to hold cover in place.