D-Torch with quartz outer tube & installation guide. Compatible with PerkinElmer Elan, NexION 300/350 ICP-MS.A patented, precision-engineered, demountable torch, incorporating a ceramic inner tube for greater robustness & demountable quartz outer tube that can be replaced when it fails rather than replacing the entire torch. D-Torch also features an interchangeable injector, allowing installation of a specific injector, whether it be for aqueous (~2.0mm ID), organics (<2.0mm ID), high TDS (>2.0mm ID) HF (alumina) or high purity sapphire.The D-Torch is the only design with an optional ceramic outer tube (P/N 501907158). The quartz outer tube is ideal for most applications while the ceramic outer tube is best for high TDS, organics, or HF matrices. Replacement parts include 31-808-2847, 501907157, 501907155.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001