Pay in 4 interest-free payments of $3.87 Learn more
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
deep water culture
Drains freely and does not hold any excess water
such as with existing infestations
Potassium Sulfate
Watch this video explaining why it's the perfect solution for growers who need high-performance irrigation filtration with a smaller footprint
Rockwool Block Cover Size:6 Inch (40 Pack) deep water culturePLASTIC 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