The range of Verolux profiles enlarges itself with this new profile 13 x 55 mm. Born like excellent alternative to the outmoded AL51N (14 x 55mm.), it has a lot of advantages like: more convenience for profile hight density; same wind resistance of the 14 x 55 mm. (based on the CE law) and same mechanical resistance; ideal in the substitutions because its optimized shape permit the installation in every pre-existent guide; ideal in the new installations for his reduced encumbrance. This new profile in conclusion of a technical study of three decades of industry experience that it maintains the same std quality that distinguishes all our products recognized and appreciated in the world.