Active Aqua 2.0 High Rise Tray, White, 2'x4' (ID)Description Active Aqua 2. 0 High Rise ID (Inner Dimension) Trays: These trays are your optimal choice for top of the line, enduring grow trays that are reasonably priced. Boasting deep sidewalls, the High Rise ID trays can house larger root masses, taller pots, and heavier crops. They are crafted from food safe high impact polystyrene which is resistant to low heat, stains, chemicals, and UV. Having excellent all around rigidity, these trays also