Screw caps for screwthread tubes GL14, bore 8mm Back Catalog number: OST-201-0246 Availability: In the manufacturer's stock Price on request - + Recommended C-HSPVLP-6 HiSorb Septum Plug, pk 6 Price on request SERZ-1097 Spare tube assembly, ACTI-VOC Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request