These plastic trays are specifically designed to fit Optigrow Air Pruning Pots. The trays are big enough to accommodate the 'egg carton' like design of the air pruning pots. The trays are useful to protect surfaces underneath the pots when watering, particularly in indoor environments. They are also useful as a means of keeping the plants in the air pruning pots moist, as the trays can be filled, which allows the water to percolate upwards through the soil. Trays are available for Optigrow Air Pruning Pot base sizes of 200mm, 250mm, 300mm and 400mm.
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