This lower cost seeding machine is ideal for the grower wanting a one person seeding operation. This machine has proven very popular with growers. The SF Air Seeder features an automatic tray indexing system, dibbler and sowing mechanism. The machine is uncomplicated yet effective. The SF seeder requires only compressed air at 80 p.s.i. This machine will sow directly into plug trays, or packs. It comes complete with 1 tray setup of your choice included as well as an onboard 'air-service' unit (filter regulator), and vacuum jar for seed collection.