Outwater Aluminum J Channel Fits Material 1/8-in Thick Mill Finish Aluminum Cap Moulding 46-in Length (Pack Of 3) in the Furniture Moulding department at Lowes.com
Trusscore 3/4 in. x 1-3/8 in. x 8 ft. Slatwall J Channel White PVC Trim (2 Per Box) RCT34J08 - The Home Depot