Rockwool Block Cover Hurricane Fans Just like any good farmer

Just like any good farmer would

They are sold individually and are finely crafted to provide a strong cover to their containers

Includes a pressure relieve valve and a 3 ft hose

The ID trays maintain Botanicare's standard inside dimensions for maximum growth space and are composed of durable white ABS plastic

Bulletproof Si 5% has additional natural components including amino acids and Ascophyllum nodosum

Rockwool Block Cover Hurricane Fans Just like any good farmerPLASTIC BLOCK COVERS Reflect light to plant leaves, where it's needed most. Block light from media. Eliminate algae and mildew growth. 40 dual sided block covers per pack. Works great with GRODAN Blocks. Block light from media Reflect light to plant leaves where it's needed most Eliminate algae and mildew growth 40 dual sided block covers per pack