BLOCK COVERS 4" - 40 PER PACK (20 PACKS/CASE)
BLOCK COVERS 4" - 40 PER PACK (20 PACKS/CASE) at HorticultureSource.com -
Block Covers BLOCK COVERS 4IN (40/PACK) For Rock Wool & Other Grow Media. Blocks light from media reducing algae & pest problems. Use white side up to reflect light. Use toothpick to hold cover in place. Manufacturer's Product Information 2007 MSRP Each $ 6.95 Case Weight 0.16 LB Case Dimensions 4.75 x 5.75 x 0.25 IN Case Quantity 1 UPC 870883008376