Oxford Hopper (Basement) Windows Standard Features:

• PVC maintenance free virgin vinyl mainframe
• Box frame allows easy installation in concrete applications
• Non-corroding fiberglass memory screen mesh
• Fusion-welded sash and frame
• 3/4” insulated glass
• Airtight fin seal weatherstripping on both sides of sash
• Superior security lock assists in opening and pulling sash inwards
• 40-Year transferable warranty

Hopper windows have a hinged pull-inside sash that allows light and ventilation.