Spare tube assembly, ACTI-VOC Back Catalog number: SERZ-1097 Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended H1-AXAAC HiSorb probe, inert, standard, pk/6 Price on request M-TICAP Tube interface cap for removable lid,pk 6 Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request