Rtx -1 (Fused Silica)^ 0.25mm ID. 30Meters Length. 0.10um. Ideal for the analysis of solvents and petrochemicals. Available in Unbreakable Silcosteel (MXT )tubing. Thermally stable to 360[degree]C (MXT stable to 400[degree]C). Similar to DB-1, SPB-1,