This is the largest tray in the range, at 4 x 204 x 100cm, moulded in UV-proof virgin plastic. The gutters drain to a deeper point where a lead through handles supply and return. It takes 25mm PVC couplings, and a matching aluminium grow table supports its size. Together they make a flat, waterproof growing deck.
In flood and drain mode, a pump fills the tray with nutrient solution at set times and then lets it drain back to the tank. The big surface feeds a full crop of leafy greens, tomatoes or propagation trays. The bed runs dry between cycles, protecting the roots. Lead throughs not included.