They are also available as straight lengths, coiled, or convoluted styles. Each material has a low coefficient of friction and antistick properties, but all are chemically inert, nonwetting, and nonleaching. Sizes range from 0.004 to 4-in. ID, and operate at up to 500°F, depending on the material and configuration. They offer a low refractive index for applications where operators need to see materials passing through the tube.

Texloc Ltd., 4700 Lone Star Blvd., Ft. Worth, TX 76106, (800) 423-6551,