The Eco Rack 3U DD 40 of the PerforLine series is a double door rack flight case suitable for signal processors, crossovers, lavalier systems, handheld transmitter systems and headset systems. The case has an installation depth of 40cm and a height of 3U. The rack is equipped with strap handles and snap locks. The flightcase is not riveted, but processed with a special adhesive from the automotive industry, therefore more durable and lighter.