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

Savannah Hydroponics & Organics Verified independent store

→

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. Show more