Aluminum Rectangular Tubing - 1" x 3" x x 1/8" Wall x 1/4"
1/2" x 5/8" OD Rectangular Aluminum Tube – Testrite Aluminum
6063 Aluminum Rectangular Tube 2 X 4 X 1/4 - Etsy
Amazon.com: 8121, Aluminum Structural Tube 1.5" x 3" x 0.125" x 12" Long : Everything Else
Amazon.com: Kwweeoo Aluminum Rectangular Tubing 2Pcs 25mm x 76mm x 1000mm Long Wall Thickness 2mm, 2 Pack Aluminum Structural Rectangular Tube 1 x 3 x 0.08 x 39.37" inch : Industrial & Scientific
Amazon.com: New Metal Aluminum Rectangle TUBING - 2" x 5" x .120" x 24" SH-0744M Warranity by KolotovichTool : Industrial & Scientific
10mm x 20mm x 2mm Alum Rectangle Tube 6060 Metric 60" | Online Metals