1-7/8" OD x 12"-Long x 1/8" Wall 6061 T6511 Aluminum Round Tube- 1.875" OD | eBay
Push to Connect Inch Pipe Tube Size 1/4 3/8 1/2 Inch PC Pneumatic Fitting Brass Screw Medical Air Connector - China 1/4 Inch Pipe Pneumatic Fitting, PC Inch Pneumatic Connector | Made-in-China.com
Quick Fitting 5/16 Inch 3/8 Tube | Frigo Fontaine water supply.
Aluminum Round Tubing 1-1/8" OD x .065" x 72" Long NEW - 1.125" Outside Diameter | eBay