Grower's Edge Block Covers 4 in (40/Pack) spores Ceramic HPS enhances essential oil

Ceramic HPS enhances essential oil production and produces plants with minimal stretching

It is formulated with a low pH to maintain stability in storage and keep micronutrients available

ABS Anti-sediment tip

Plug Spawn Lasts up to 6 Months in Fridge

3-Way Gas Manifold with 1

Grower's Edge Block Covers 4 in (40/Pack) spores Ceramic HPS enhances essential oilGrower's Edge Block Covers 4 in (40 Pack) For blocks of rockwool and other grow media. Grower's Edge Block Covers block light from mediawhich 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.