Everbilt 48 in. x 3/4 in. x 1/16 in. Aluminum Square Tube 801317 - The Home Depot
Paulin 3/4 x 36-inch Aluminum Square Tube | The Home Depot Canada
Steelworks 3/4-in x 3-ft Mill Finished Aluminum Round Tube in the Tubes department at Lowes.com
uxcell 6063 Aluminum Tube, 3mm 4mm 5mm OD x 2mm Inner Dia 300mm Length Seamless Round Pipe Tubing, Pack of 3 : Industrial & Scientific - Amazon.com
Amazon.com: Pipes and Accessories 1Pcs 19mm-39mm Inner Diameter Aluminum Tube Alloy Hollow Rod Hard Bolt Pipe Duct Vessel 100mm Length 41mm OD Easy to use and Durable (Specification : 41mm(OD) x39mm(ID)) :