1. Aquaiaw 8 inch round wall mount shower arm is made of 15/16 inch diameter heavy-duty solid brass tube.
Please check the mounting hole size to make sure this shower arm fits.
2. Both shower arm and escutcheon are made of heavy-duty solid brass.
5/16 inch diameter Round Heavy-Duty Solid Brass Tube.
Both sides are Soldered 1/2-14 Tapered NPT threads.
Basic design and compatible for all fixed shower heads.
3. Flange/Escutcheon size: Diameter 2.36 inch X 0.4 inch. Flange/Escutcheon is with O-Ring inside for easy installation.
Need indication for choosing a high quality shower arm? How to Choose a High Quality Shower Arm