8 Foot Flat Back Stainless Steel U-Channel for 3/8"– Trade Diversified
Brite Anodized 3/8" Fixed Panel Shower Door Deep U-Channel - 98"
Everbilt 3/8 in. W x 1/2 in. H x 96 in. L Aluminum C-Channel with 1/16 in. Thick 800547 - The Home Depot
Outwater Mill Finish 1-3/8'' Inside Dimension Aluminum U-channel 36'' Length (pack Of 4) Alu578-m C-channel in the Furniture Moulding department at Lowes.com