The Competitor white vinyl basement window is impact-resistant solid vinyl frame and sash. The window has energy-efficient 3/4" insulated glass standard R-Value 2.00 U-value = .5. Sloped sill for efficient water removal. Limit stop hinge system allows sash to tilt in for easy cleaning. No tool sash removal. Fully weather-stripped. Cam locking handle. Full screen included. Extruded vinyl masonry fin (easily strippable for replacement applications). Extruded fin or sill for motar grab.