Rigid line outer conductor 4 m tube aluminum 3 1/8" SMS - Rigid Coaxial Line - Product Finder SPINNER GmbH
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)) :
6061 Aluminum Pipe 3/4" Schedule 40 x 12" long ( 1.050" OD x .113" Wall ) | eBay