Home / Agriculture / Hydroponic 4″ X 2″ Open Trunking Pipe Hydroponic 4″ X 2″ Open Trunking Pipe Open Trunking Pipe for hydroponic system usage. The cover can be opened for easy cleaning after each harvest. Colour: WhiteSize: 4″ X 2″ X 5.8mType: 8″ Gap, 28 Holes Related products 47mm Hydroponic Pot Plant Shading Net GOOD BOY Heavy Duty Garden Sprayer Soil Plug 4″ X 2″ Open Trunking Pipe End Cap With Outlet 4″ X 2″ Rectangular Pipe End Cap