EFCO 2250i, 3250i, and 4250i XTherm™ projected windows are designed for a wide range of applications in commercial, multi-family, education, and office buildings. This window is a flexible option in today’s retrofit and new construction markets.

Flush vent construction
Reduces collection of dust and debris
Dual or triple glazed option
With hinged or lift-out panels
Multi-lock hardware option
Improved accessibility
2-1/2", 3-1/2", and 4-1/2" frame depth
With polyamide thermal barrier