Grower's Edge Block Covers 6 in 40/Pack

Growers Edge

$17.95

For blocks of rockwool and other grow media. These Grower's Edge¨ Block Covers blocks light from mediaÑwhich 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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