D-Torch with quartz outer tube & installation guide. Compatible with Thermo 6000/7000 Radial and PRO Radial ICP-OES. 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. Compatible with all EMT injectors.The D-Torch is the only design with an optional ceramic outer tube (P/N 31-808-3836). 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 NC1432483, 501694688, 31-808-2707, 31-808-2895, 31-808-2897, VT-007.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001