With virtually identical chemical resistance to PFA at a lower price, Upchurch Scientific® tubing made of DuPont® FEP fluoropolymer is great for general, low pressure applications.

• The maximum recommended continuous use temperature for FEP tubing is 50 °C

Compared to PTFE, FEP (fluorinated ethylene propylene) tubing is held to tighter tolerances and has lower gas permeability. Much of this line of FEP tubing, even the color-tinted options—is translucent, making it possible to watch fluid flow. Using different colored tubing can help identify transfer lines in multi-solvent systems. Color coding also allows easy identification of the tubing thru-hole size. Black FEP tubing is available for light-sensitive applications (such as enzymatic and chemiluminescent reactions) and entering/exiting flow cells.

Ext.Ø Tolerance: 1/16" OD: ±25 μm (0.001"); 1/8" OD: ±76 μm (0.003"); 3/16" OD: ±102 μm (0.004"); 1/4" OD: ±102 μm (0.004")
Int.Ø tolerance: 1/16" OD: ±25 μm (0.001"); 1/8" OD: ±76 μm (0.003"); 3/16" OD: ±102 μm (0.004"); 1/4" OD: ±102 μm (0.004")
pH Range: 0 – 14
Refractive Index: 1.338