Screw caps for screwthread tubes GL14, bore 8mm Back Catalog number: OST-201-0246 Availability: In the manufacturer's stock Price on request - + Recommended OST-201-3421 Tube gas sampling 350, nozzle (GL14), septum Price on request 1970-0011-R O-RING -011 .301 ID X .070 W Each Price on request 1234 BALLOONS FOR GAS SAMPLING, 5Liters Price on request