This square shower arm is constructed for standard in-wall shower system installations, built to connect overhead shower heads securely to existing water supply lines. It features a solid brass heavy-duty body that resists corrosion, rust and long term wear from constant water exposure in daily bathroom use. The accompanying square escutcheon flange comes with a built-in anti-scratch O-ring that prevents surface scuffs on finished wall surfaces during and after installation, creating a neat, gap-free finished look around the mounting point. Both ends of the arm are fitted with soldered 1/2 NPT tapered threads to ensure a tight, leak-free seal when connected to matching plumbing fittings. The main pipe measures 1 inch by 1 inch, while the flange has a 2.4 inch by 2.4 inch footprint, suitable for most standard residential bathroom renovation or replacement projects. Users are advised to verify the mounting hole size before installation, and consult a licensed plumbing professional if they have questions about fit for their specific setup. Color: Chrome.