Need more room? Nesco American Harvest Add-A-TrayŽ Accessory Packs add 2 extra trays to expand the capacity of your dehydrator. Snackmaster Add-a-Tray Accessory Pack fits models FD-40, FD-50, and FD-60 dehydrators. We also sell Add-a-Tray Accessory Packs to fit models FD-1000 and FD-1010.