The flush mounted semi automatic pass-thru window is configured for compact counters where a clear, unobstructed service opening is required. A push-bar mechanism drives the semi-automatic action and folds the two door leaves away from the opening for handoff. The assembly measures 24" in width and 38-1/2" in height and installs into a rough opening of 24-3/8" in Width and 38-7/8" in Height. The service opening is 16" in Width and 32" in Height, and the Interior Window Opening Height is 32-3/4". Construction uses an aluminum frame with a stainless steel mounting base to support daily cycles at reception points and food service counters. Glazing is 1/4" clear tempered safety glass for visibility. Framing depth is 4", the service counter depth is 10", the upper frame height is 1-3/4", and the base height is 4". The overall mounting base depth is 14". Finish options include Dark Bronze Anodized and Clear Anodized with custom finish to coordinate with storefront systems and adjacent hardware. The bi-fold layout provides a slim profile and supports efficient item exchange at the window. Custom sizes available upon request to suit different project needs.