Grodan Gro-Smart Tray 78-Cell Terracotta extension Hydroguard's reformulation makes it even

Hydroguard's reformulation makes it even more effective than before

Nitric Acid (Up to 50% Concentration)

keeping your lines

Heavy metal

and residential landscapes

Grodan Gro-Smart Tray 78-Cell Terracotta extension Hydroguard's reformulation makes it evenDescription Product Details: Grodan Gro Smart TM Tray Grodan Gro Smart TM Tray: Your Grodan Starter plugs, Mini Blocks TM and Gro Blocks TM have finally found a home. This durable Dutch tray has double sided features. Use the 78 cell side to perfectly fit 1. 5" A OK Starter TM plugs or round Macroplugs TM. Use the mesh side for sheets of A OK's, Mini Blocks, or Gro Blocks. The tray fits in a standard 10" x 20" flat and keeps the Grodan elevated from