The Ultraseal™ PRO is an automated heat-applied microplate and tube rack sealer. The unit uses a roll of surface modified aluminum or plastic film, approximately 78mm wide and 610mm long. The roll is positioned to the rear of the sealing section via a removable stand. Using a total in-line method, the film is pulled through the main unit, cut to between 125mm and 130mm lengths, and applied to the plate top surface to create a seal between plate and film.