12 Inch L-Shaped Shower Arm, Parent (Black). Finally enjoy a luxury rainfall shower experience the way it is meant to be with this 12-inch L-shaped shower arm. The arm attaches easily to any showerhead and allows the head to sit over the middle of the bathtub, perfect for that relaxing rainfall shower or any time you want the showerhead over the center of the tub. The arm?s appealing style and sleek design looks great in any bathroom. Available in a polished chrome, brushed nickel, black and oil rubbed bronze finish. Solid metal construction supports showerheads up to 14-inches in diameter. Includes an easy-to-install arm and flange that fit standard US shower plumbing fittings with a oe-inch I.P. connection. Limited warranty.