Outwater Black Finish 3/4'' Inside Dimension Aluminum U-channel 46'' Length (pack Of 3) Alu447-bk C-channel in the Furniture Moulding department at Lowes.com
Steel C-Channel Table Stiffeners — Wane+Flitch
Matte Black Aluminum Deep U-Channel for 1/4" Glass 95" | Wholesale Glass & Supplies
sign posts - galvanized u-channel steel post - 2lb/ft - 8 foot long
1121 Series Low-Side U-Channel (17 Hole, 432mm Length) - goBILDA
Outwater Black Finish 3/8'' Inside Dimension Aluminum U-channel 48'' Length (pack Of 3) Alu57-bk C-channel in the Furniture Moulding department at Lowes.com
CRL D600BL Flat Black 1-1/16" Single U-Channel 144" Stock Length - Shelving Hardware - Amazon.com