K2-Systems SingleRail 36 4.8m - 2004393. Mounting component for a compatible solar-panel installation. SingleRail 36 mounting rail, part 2004393. Length 4.8m, profile height 36mm and width 39.4mm. Aluminium EN AW-6063 T66 construction for compatible K2 mounting systems. Listing is for the rail; roof attachments, clamps and solar panels are separate.