Steelworks 3/4-in W x 8-ft L Mill Finished Aluminum Weldable Trim Channel in the Channels department at Lowes.com
Amazon.com: U-Channel, AL 6063, 1 in Leg, 3 in x 8 ft : Industrial & Scientific
Amazon.com: 4 FT - 3/4" Aluminum Channel 1/16" Walls x 5/8" High 6063 Alloy T-6 Temper Clear Anodized : Industrial & Scientific
CRL D321BL Black 3/8" Single Aluminum U-Channel 144" Stock Length
Matte Black Aluminum Deep U-Channel for 3/8" Glass 95" | Wholesale Glass & Supplies
3" x 1" x 24"-Long x 1/8" Thick 6061 T6 Aluminum Channel --- 3" Wide Channel | eBay
part# AC3.00 X 1.41 X .170 X 25' Aluminum | Steel Supply LP
Outwater Black Finish 3/4'' Inside Dimension Aluminum U-channel 48'' Length (pack Of 3) Alu447-bk C-channel in the Furniture Moulding department at Lowes.com