Quartz Outer Tube. Compatible with GBC Integra ICP-OES, Glass Expansion's PT2000 Fully Demountable Torch. The fully demountable torch, provides a robust and high-performing alternative to both single-piece and semi-demountable quartz torches, ensuring greater robustness and a lower cost of ownership. With the fully demountable torch design, the analyst most often replaces only the outer tube, rather than replacing the entire torch or a quartz torch body.When not in use, clean as per recommended guidelines, and store in original box.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001