Add to Cart Compare Quick view 8" Block Covers, Pack of 40 HydroFarm MSRP: $25.95 Now: $19.95 Was: 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... MSRP: $25.95 Now: $19.95 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: $25.95 Now: $19.95 Was: Subtotal: Add to Cart
Add to Cart Compare Quick view 6" Block Covers, Pack of 40 HydroFarm MSRP: $21.95 Now: $16.95 Was: 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... MSRP: $21.95 Now: $16.95 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: $21.95 Now: $16.95 Was: Subtotal: Add to Cart
Add to Cart Compare Quick view 4" Block Covers, Pack of 40 HydroFarm MSRP: $11.95 Now: $10.95 Was: 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... MSRP: $11.95 Now: $10.95 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: $11.95 Now: $10.95 Was: Subtotal: Add to Cart
