Home :: Thermal Desorption Tubes :: Gerstel - Tubes 6mm OD x 7" Length :: Camsco Thermal Desorption Tube for Gerstel, 6mm OD x 7" length, Glass, PTFE Compression Cap, packed with Carbograph 5TD 60/80 mesh (Substitute for Carbopack™ X 60/80 mesh), Conditioned, ea.