Associated accessories WC8310 Aluminium outer casing for plasterboard - 264 mm WC8311 Aluminium outer casing for plasterboard - 514 mm WC8312 Aluminium outer casing for plasterboard - 1014 mm WC8313 Aluminium outer casing for plasterboard - 1515 mm WC8314 Aluminium outer casing for plasterboard - 2015 mm