Sidewall register is designed to direct airflow in one or two directions. They maybe used in either a supply or return air application and can be installed in ceilings or walls. Available Wood Species: Solid wood species: white oak, red oak, Brazilian cherry, maple, hickory, American cherry, santos mahogany, bamboo, American walnut, Brazilian walnut, and so on. Available Finishes: Unfinish, natural finish, medium finish, and any other prefinishes of a variety of wood species for your choice. Size Available: 2" × 10" 2" × 12" 2" × 14" 3" × 10" 3" × 12" 3" × 14" 4" × 10" 4" × 12" 4" × 14" 6" × 10" 6" × 12" 6" × 14" 8" × 10" 8" × 12" 8" × 14" Metal Damper choice: Damper box slide damper Customized service: Dimensions, wood species, finishes, and other specifications can be customized according to customer's drawing, welcome OEM production.