Window Frame 3-4 Bar

Window Frame 3-4 Bar

The Window Frame 3-4 Bar is the bottom-most horizontal bar, designed to sit on the sill and connect to the left and right vertical bars of Retrotec’s window-sized blower door frames. This bar provides essential foundational support, ensuring a stable base for the frame during air leakage testing in window openings.

• Window Frame 3-4 Bar