- Master frame and sash welded at a temperature of 240 degrees to assure optimum strength
- Heavy duty multi-point locking mechanism – locks in several different places using one handle
- True 0.080″ wall thickness on master frame
- 7/8″ Warm Edge insulated glass – Low-E with argon and other high performance glass options also available
- Extruded bulb seal – to block air infiltration
- Sleek but strong operating handle – collapsible handles also available
