Acrylic Tubing 5/8" OD can be cut, ground, or fire polished depending on application.
Buy Clear Cut-to-Size Clear Acrylic Tubes
Choice Multicolor Compression Fitting - OD: 14mm Rigid Tubing Classic Black
Buy Acrylic Tube, Cylinder Cut To Size - UVACRYLIC
EK-Loop Hard Tube 12mm 0.5m - Acrylic (2pcs) – EK Webshop
3.5-OD x 3.25-ID x 23 7/8-Long Clear Extruded Plexiglass Acrylic Tube
Unique Bargains Clear Rigid Acrylic Pipe 41mm(1 5/8) ID x 45mm OD x 305mm(12), 2mm(3/32) Wall Round Tube
Acrylic Rigid Square Tube, Clear, 1/2 ID x 5/8 OD x 12 L - Pack of 6 : Industrial & Scientific
Clear Cast Acrylic Tube 90° Elbow 5 OD x 4-5/8 ID x 67
Plastic-Craft Acrylic Clear Square Tube - Durable & Versatile
Round Acrylic Tube
2-5/8ID X 3OD Petro Extrusion - Plastic Extrusion Specialists
Frosted Acrylic Round Tube – Canal Plastics Center
Acrylic Round Tube – Plastic World