A new assortment of PEEK tubing is available in a variety of natural PEEK, solid color coded, dual-layer color coded, striped and dash-striped coded. The dual-layer, color-coded tubing rids pigment contamination from the cirtical sample stream. The tubing is similar in appearance to other color-coded tubing, but also has an inner layer of natural PEEK that surrounds the pigmented layer. Pressure performance in the dual layer is equivalent to the single-layer tubing. Tubing is available in a wide variety of colors. OD sizes are available in 360 micron, 1/32”, 1/16”, and 1/8” with IDs as small as .002”. Color-coding identifies the ID of the PEEK tubing – each ID is coded with a different color. Standard ID sizes and colors are: .005” Red; .007” Yellow; .010” Blue; .020” Orange; .030” Green. Tolerance is ±.0005” for IDs up to .010”, and ±.001” for larger IDs. All colorants used in the manufacture of our tubing are RoHS-compliant (Restriction of Hazardous Substances).
Valco Instruments Co. www.vici.com 
Natural PEEK tubing is now available in a variety of colors and coding. Dual-Layer Color-Coded tubing rids conncern of contamination of pigments in the sample stream.