HIGH END architectural grade High energy efficient WHITE VINYL CASING WINDOWS - FIXED 64" X 34 1/2 " This window system is made with REHAU's 1400-series uPVC profiles, which are believed to be the first vinyl window design to have earned a performance rating in the highest classification defined in the window industry (AAMA 101 "Architectural" Grade 70), and ROTO FRANK's X-Drive multi-point locking hardware. made of uPVC 4-chamber profiles with triple gaskets for superior thermal performance contoured shape similar to fine millwork reinforced frames and sashes EuroLine Windows Inc. is a private Canadian company founded in 1993 as A.N.G. Window Tech Ltd. In 1998, the name was changed to EuroLine Windows Inc. to better reflect the advanced European technology embraced by the company.