Grower's Edge Block Covers 4 in (40/Pack)
by Hawthorne
Original price
$14.50
-
Original price
$14.50
Original price
$14.50
$14.50
-
$14.50
Current price
$14.50
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.