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Block Covers

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  • Block Covers

Block Covers

Product Name Price Qty
Block Covers - 40 Pack - 6"
$18.74
Block Covers - 40 Pack - 4"
$13.74

For blocks of rock wool 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

Product Description

  • For blocks of rock wool 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