Polycarbonate Tube / Tubing .312" x .187" (5/16" x 3/16") x 48", 4 Units, 16 Feet Total

.312 Inch Outside Diameter

.187 Inch Inside Diameter

.062 Inch Wall Thickness

It can be machined, drilled, cut and sawed, and is easily joined with solvents and adhesives. Weather Resistant, UL 94HB and FDA Compliant. Made from Sabic Lexan®.

Polycarbonate Tubes are not Pressure or Vacuum Rated

Tolerances: Tubes

OD Dia Tol +/-.025", ID Tol +/-.025"

These Polycarbonate tubes are extruded, therefore, they will have extrusion lines, from the extrusion process.
Extrusion lines appear as fine scratching.  They are not as clear as glass or cast acrylic. They also have a blue edge tint. 

265° F continuous use temperature. Polycarbonate has a glass transition temperature of about 147 °C (297 °F; 420 K), so it softens gradually above this point and flows above about 155 °C (311 °F; 428 K)

Tubes less than full length (8 Ft) are cut on a band saw, and may have slight burrs, shavings, etc.  Larger Diameters may not be perfectly flat or straight or perpindicular to the length due to blade taper/wandering.