Block Covers

Block Covers

  • Block Covers 4x4- 40 count

    MSRP: $12.59
    $7.95
    PLASTIC 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...
    MSRP: $12.59
    $7.95