Van Racking Double Extension Top - XL3 Part Bins - High/Medium Roof VehiclesRacking Extension Top XL3 PARTS BINS Double This can be added to any Standard Heavy Duty & Extra Heavy Duty Rack making the combined racking unit 1690mm high. Suits medium and high roof vehicles. Includes 12 off XL3 plastic parts bins plus fixings. Two height options available giving a combined height of either 1340mm or 1690mm. Four shelf type options Standard duty grey, XL3 part bin shelf, Storetidy red and plain galvanized. EXTENSION DIMENSION. 975