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Block Covers 4 in 40/Pack

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 Product Description

  • 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.
  • Sold in pack quantities only.
Growers Edge
MSRP: $9.95
$8.20 (You save $1.75)
0.10 LBS

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