D-Torch body assembly with base and inner tube, compatible with PerkinElmer Avio 200/220 Series ICP-OES. Injector adaptor (31-808-3782) not included, compatible with PE design N0790141 & PE Avio injectors. A precision-engineered, demountable torch, incorporating a ceramic inner tube for greater robustness & demountable quartz outer tube (501907259) 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) or HF (alumina). The D-Torch is the only design with an optional ceramic outer tube (501907262). The quartz outer tube is ideal for most applications while the ceramic outer tube is best for high TDS, organics, or HF matrices. Additional parts include Retaining Ring (31-808-2818), & Viton O-Rings (70-803-1576).Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001