Tube gas sampling 350, nozzle (GL14), septum Back Catalog number: OST-201-3421 Availability: In the manufacturer's stock Price on request - + Recommended U-COV03 O-Ring, Size 003, pk 10 Price on request U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request U-T11GPC-2S Unity 2/TD-100 Cold Trap carbon C4/5-C30/32 Price on request