ProVia’s FineLine Technology for Endure Vinyl Windows is designed to produce a straight, clean weld line. The technology is available through ProVia dealers and comes standard on all laminated or painted Endure windows, with the option to upgrade on white, beige and sandstone vinyl. Endure replacement windows produced with FineLine technology are Energy Star-certified vinyl windows that can meet Energy Star window standards nationwide, or for specific climate zones, says ProVia.