The Pergowin Sliding Frame Glass system is a sliding system designed with  threshold. It oiers up to 16,8 sqm coverage and is available with 5+11+5 mm. tempered double glazing with the required number of sections up to 5,6 meters in width in one side operation and will be doubled with two sides operation option . Thanks to its clever extra light roller system and silent locking system, users can enjoy smooth manual operation between each section while the system is extended or retracted.