Kenney A7004213417 Sash Rod, 5/16-Inch Diameter, 12-to-22-Inch Width, White, 2-Pack
Graber 5/16-Inch Swivel End Sash Curtain Rods - (21 to 38-Inch Adjustable Width, White w/ Nickel Ends)
Levolor A7004213416 Sash Rod, 5/16-Inch Diameter, 21-to-40-Inch Width, White, 2-Pack
Round Sash Cafe Rod