Grower's Edge Block Covers 4 in (40/Pack)

$11.59 $9.22
SKU: HGC714820

For blocks of rockwool and other grow media. Grower's Edge? Block Covers block light from media?which helps reduce algae. Use white side up to reflect light. Use toothpick to hold cover in place. Hole in center of cover measures 1/2 inch in diameter.

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