Spacecase: Tray: for 900 x 550 x 400 mm case Colour: Black Tray Option Model 550 with Tray and Rail kit Fitted Rail Kit for tray fitted SPC1105545 old model with tray (no need rail kit) The tray rail kits are for ‘L08’ cases, due to the opening being larger. The L08 cases have a larger opening and the rails are needed for the tray to sit on, otherwise the trays would fall straight into the box. The other boxes have a lip around the inside of the opening, and the trays sit on that, hence not needing the tray rail kits.
