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Amazon.com: MECCANIXITY Acrylic Pipe Clear Rigid Round Tube 4pcs 18mm(0.7") ID 20mm(0.8") OD 6" for Lamps and Lanterns, Water Cooling System : Industrial & Scientific
Amazon.com: uxcell Rigid Round Clear Tubing 26mmx28mmx300mm Plastic Storage Transparent Tube with White Lids : Industrial & Scientific
Amazon.com: uxcell Rigid Round Clear Tubing 26mmx28mmx300mm Plastic Storage Transparent Tube with White Lids : Industrial & Scientific
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Polycarbonate Tubing, 2 1/4" ID x 2 1/2" OD x 1/8" Wall, Clear Color 36" L: Industrial Plastic Tubing: Amazon.com: Industrial & Scientific