Brand New Ico-Rally STS-2 “Standard Wall” Size 2 Clear(Translucent)Teflon Tubing Nominal I.D. is .263” or 6.68 mm Nominal Wall thickness is .020”or .51 mm Operating temp. -103°F (-75°C) to 500°F (260°C) Conforms to MIL-I-22129C Sold in 10 ft. increments. Multiple orders are shipped as a continuous length