Grower's Edge Block Covers 6 in (40/Pack)

was $19.99 Special Price $16.99
In stock
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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