The TT300I Tilt & Turn Window is a dual-function European-style window that offers two distinct opening modes from a single handle rotation. In tilt mode, the top of the sash opens inward for secure, draft-free ventilation. In turn mode, the sash swings fully inward like a casement door for maximum airflow and easy interior cleaning. The TT300I's advanced multi-point locking system and thermally broken aluminum frame make it a versatile, high-performance solution for discerning residential and commercial projects.