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Aluminum Channel | Cut To Size | Metal Supermarkets
Everbilt 1/2 in. W x 1/2 in. H x 96 in. L Aluminum C-Channel with 1/16 in. Thick 802657 - The Home Depot
MetalsDepot® - Buy Steel Channel Online!
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
Everbilt 2 in. x 36 in. Plain Steel C-Channel Bar with 1/8 in. Thick 801217 - The Home Depot