After searching for hours on end trying to find net pot holder to fit a 1020 we finally gave up and manufactured our own. We worked with hydroponic and aquaponic growers to make a design to easily use your net pots with 1020 tray. Avoid the expensive and timely build out of rafts and use your existing 1020 seed flats to start growing hydroponically. Our net pot trays are build of food safe Polypropylene (#5 PP) plastic. Each net pot tray fits 18 x 2 inch net pots.