Block Cover, pack of 40
Block Cover, pack of 40 at HorticultureSource.com -
Hydrofarm Block Cover (HGCOV4) 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 Manufacturer's Product Information MSRP each $ 9.95 UPC 638104945790 Dimensions 6.5 x 0.2 x 7 Case Weight 4 Case Quantity 20