Tube gas sampling 350, nozzle (GL14), septum Back Catalog number: OST-201-3421 Availability: In the manufacturer's stock Price on request - + Recommended C-TO17KIT TO-17 Starter Kit Price on request C-MCTEKIT-120 Low Temperature MCTE Starter Kit Price on request M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request