B1515 phases 3 and 4 gas lines.png

This is an image showing dimensional measurements of what appears to be a construction or architectural detail. The image displays a wall or structural element with orange measurement lines indicating three key dimensions: 2 inches (horizontal), 1.25 inches (horizontal), and 8 inches (vertical measurements shown twice). The measurements appear to be overlaid on a photograph of an interior space with walls, doorways, and what may be architectural elements or fixtures in the background. The image lacks any text, labels identifying the component being measured, or contextual information about the purpose of these specifications.